JP7501326B2 - Subjective optometry system and subjective optometry program - Google Patents

Description

The present disclosure relates to a subjective optometry system and a subjective optometry program used to subjectively measure the optical characteristics of a subject's eye.

There is known a subjective eye examination device that measures optical characteristics such as the eye refractive power of the subject's eye by placing an optical element in front of the subject's eye and presenting a test target to the subject's eye through the optical element. For example, the subjective eye examination device described in Patent Document 1 includes an eye refractive power measurement device, a target presenting device, and a controller. The eye refractive power measurement device uses a drive unit to switch the optical element to be placed in the eye examination window out of multiple optical elements included in the correction optical system. The target presenting device switches the test target to be presented to the subject's eye. The controller detects a user's operation on the operation panel and transmits a drive signal to the eye refractive power measurement device and the target presenting device based on the detected operation.

When starting measurement using the subjective optometry device described above, objective measurement data measured by the objective measurement device and front glasses data of the glasses worn by the subject measured by a lens meter are input into the subjective optometry device in order to perform initial settings for the subjective optometry device, improving the efficiency of the test. Note that the above-mentioned objective measurement data and front glasses data are managed for each subject.

JP 2020-18712 A

However, in such subjective eye examination systems, when the subjective eye examination device imports objective measurement data, previous eyeglasses data, etc., sets them as initial values for the subjective measurement, and starts the measurement, it may be difficult for an examiner with little eye examination knowledge or experience to determine whether the initial values are appropriate or not. Furthermore, in recent years, self-eye examinations in which the examinee performs the examination themselves using such subjective eye examination systems have been considered, and when the examinee sets the initial values, it may be difficult to determine whether the initial values are appropriate or not. In such cases, for example, if an inappropriate initial value is set, it may not be possible to perform the eye examination properly.

In view of the above-mentioned conventional techniques, the technical objective of the present disclosure is to provide a subjective eye examination system and a subjective eye examination program that enable the initial values to be set appropriately and enable eye examinations to be carried out smoothly.

To solve the above problems, the present invention is characterized by having the following configuration.

(1) A subjective eye examination system according to a first aspect of the present disclosure is a subjective eye examination system used for subjectively measuring optical characteristics of a test eye, comprising: a subjective eye examination device having a corrective optical system that changes the optical characteristics of a target light beam presented to the test eye; a database in which at least one of objective measurement data obtained by objectively measuring the optical characteristics of the test eye and front-spectacles data obtained by measuring the optical characteristics of glasses worn by the test subject is stored in correspondence with an identifier provided for each test subject; an information processing device that acquires data including at least one of the objective measurement data and the front-spectacles data corresponding to the identifier from the database based on the identifier, and sets an initial value of the corrective optical system when subjectively measuring the optical characteristics of the test eye based on the acquired data; and an alert output means that outputs an alert to prompt the test subject to confirm whether the data may be set as an initial value based on whether the data satisfies an evaluation criterion.
(2) A subjective eye examination program according to a second aspect of the present disclosure is a subjective eye examination system used for subjectively measuring optical characteristics of an eye examination, the subjective eye examination program being executed by the subjective eye examination system, the subjective eye examination system including: a subjective eye examination device having a corrective optical system that changes the optical characteristics of a target light beam presented to the test eye; a database in which at least one of objective measurement data obtained by objectively measuring the optical characteristics of the test eye and front-spectacles data obtained by measuring the optical characteristics of glasses worn by the test subject is stored in correspondence with an identifier provided for each test subject; and an information processing device that acquires data including at least one of the objective measurement data and the front-spectacles data corresponding to the identifier from the database based on the identifier, and sets an initial value of the corrective optical system when subjectively measuring the optical characteristics of the test eye based on the acquired data, the subjective eye examination program being characterized in that an alert output step is executed to output an alert to prompt the user to confirm whether the data may be set as an initial value based on whether the data satisfies an evaluation criterion.

FIG. 1 is a block diagram showing a schematic configuration of a subjective eye examination system. FIG. 2 is a block diagram showing a schematic configuration of each device of the subjective optometry system. FIG. 13 is a diagram showing a database setting screen. FIG. 13 is a block diagram showing a schematic configuration of a subjective optometry system according to a modified example. FIG. 1 is a block diagram showing a schematic configuration of a subjective optometry system having a remote information processing device. FIG. 13 is a diagram illustrating an example of a case where an alert is displayed on a display unit.

＜Overview＞
A typical embodiment will be described below with reference to the drawings. Figures 1 to 4 are diagrams for explaining a subjective eye examination system according to this embodiment. Note that the items classified in <> below can be used independently or in association with each other.

The subjective optometry system in this embodiment (e.g., subjective optometry system 100) includes a plurality of subjective optometry devices (e.g., first subjective optometry device 1, second subjective optometry device 1A, and third subjective optometry device 1B). In addition, for example, the subjective optometry system includes a database (e.g., database 72).

For example, the multiple subjective eye examination devices are used to subjectively measure the optical characteristics of the subject's eye. For example, the optical characteristics of the subject's eye that are subjectively measured may be at least one of ocular refractive power (e.g., spherical power, cylindrical power, cylindrical axis angle, etc.), contrast sensitivity, binocular vision function (e.g., amount of strabismus, stereoscopic vision function, etc.), etc.

For example, each of the multiple subjective eye examination devices has a correction optical system (corrective optical system 11), an information processing device (e.g., information processing device 20), and a reading device (e.g., reading device 30). For example, the correction optical system changes the optical characteristics of the visual target light beam presented to the subject's eye. For example, the information processing device is used to operate the subjective eye examination device. For example, the reading device is connected to the information processing device, reads an identifier provided for each subject, and outputs information of the read identifier to the information processing device. Note that, for example, the reading device and the information processing device may be connected directly or via another member.

For example, the various devices are connected to each other via a network. For example, the network may be configured to be wireless or wired. For example, the subjective eye examination system communicates between the various devices using at least one of a wireless and wired configuration. For example, the wireless configuration may be a wireless LAN, infrared communication, Wi-Fi (registered trademark), Bluetooth (registered trademark), etc. Also, for example, the wired configuration may be a USB cable, a LAN cable, etc.

For example, regarding the corrective optical system, information processing device, and reading device that each subjective optometry device has, at least one of the configurations of the corrective optical system, information processing device, and reading device may be at least partially different from the configurations of other subjective optometry devices, or may be the same as the configurations of other subjective optometry devices.

For example, the database stores at least one of objective measurement data and front-spectacles data in association with each identifier. For example, the identifier can be selected as appropriate. For example, at least one of a QR code (registered trademark), a barcode, an identification hole formed according to a predetermined rule, a string of letters or patterns, etc. can be used as an identifier. Of course, identifiers other than those described above may also be used. In this case, for example, the reading device may be an identifier reader (for example, a QR code (registered trademark) reader, a barcode reader, an identification hole reader, etc.) that corresponds to the identifier being used.

For example, in this embodiment, the information processing device acquires at least one of the objective measurement data and the front glasses data corresponding to the identifier from the database based on the identifier received from the reading device. Also, for example, the information processing device sets an initial value of the corrective optical system when subjectively measuring the optical characteristics of the test eye based on at least one of the objective measurement data and the front glasses data.

For example, the optical characteristics set as the initial value may include at least one of spherical power, cylindrical power, cylindrical axis, polarization characteristics, and aberration amount. Of course, optical characteristics other than the above may be set as the initial value. For example, the optical characteristic set as the initial value may be the interpupillary distance (PD).

For example, the objective measurement data may be data obtained by objectively measuring the optical characteristics of the subject's eye. For example, examples of the optical characteristics of the subject's eye that are objectively measured include ocular refractive power (e.g., spherical power, cylindrical power, cylindrical axis angle, etc.), polarization characteristics, interpupillary distance, etc.

For example, the previous eyeglasses data may be data obtained by measuring the optical characteristics of eyeglasses worn by the subject. For example, the optical characteristics of eyeglasses include refractive power (e.g., spherical power, cylindrical power, cylindrical axis angle, etc.), polarization characteristics, interpupillary distance, etc.

For example, if only one of the objective measurement data and the front glasses data is acquired as data corresponding to an identifier, the initial value may be set based on the acquired data.

Also, for example, when both objective measurement data and front glasses data are acquired as data corresponding to an identifier, one of them may be selected. In this case, for example, a selection screen for selecting which data to use for setting the initial value may be displayed on a display unit (e.g., display unit 24) of the information processing device. Of course, a selection may be made using a different method. Also, in this case, for example, data to be prioritized may be set in advance, and when both objective measurement data and front glasses data are acquired, the initial value may be set based on the data that was set in advance.

In addition, for example, when both objective measurement data and front glasses data are acquired as data corresponding to an identifier, the initial value may be set based on both. In this case, for example, the initial value may be set based on the average value data of the objective measurement data and front glasses data. Of course, the configuration for setting the initial value using both data is not limited to the above.

As described above, for example, the subjective optometry system in this embodiment includes a plurality of subjective optometry devices used to subjectively measure the optical characteristics of the subject's eye, each of which has a corrective optical system that changes the optical characteristics of the target light beam presented to the subject's eye, an information processing device for operating the subjective optometry device, and a reading device connected to the information processing device, which reads an identifier provided for each subject and outputs information of the read identifier to the information processing device, and a database in which at least one of objective measurement data and front glasses data is stored in association with each identifier. Also, for example, the information processing device obtains at least one of the objective measurement data and front glasses data corresponding to the identifier from the database based on the identifier received from the reading device, and sets an initial value of the corrective optical system when subjectively measuring the optical characteristics of the subject's eye based on at least one of the objective measurement data and front glasses data.

In this way, for example, by connecting a reading device to the information processing device of each subjective optometry device, the identifier information read by the reading device is output to the connected information processing device, and the information processing device that receives the identifier information acquires the data corresponding to the identifier, so that it is easy to know which information processing device of the subjective optometry device is requesting the data corresponding to the identifier. In other words, by connecting the subjective optometry system to the database via the information processing device connected to the reading device that reads the identifier, it is easy to know which information processing device of the subjective optometry device is requesting the data corresponding to the identifier. Therefore, in a subjective optometry system in which multiple subjective optometry devices can be connected to a database, when acquiring at least one of objective measurement data and front glasses data from the database, it is possible to prevent the information processing device of the subjective optometry device that is requesting the data from becoming unclear. In other words, even in a subjective optometry system in which multiple information processing devices of subjective optometry devices can be connected, it is easy to know which subjective optometry device should be initially set (initial value setting) for the process of the identifier read by the reading device.

In addition, for example, by associating information about the subject with an identifier and managing it all together, various data can be easily acquired based on the identifier, and can be easily set as the initial value of the corrective optical system when subjectively measuring the optical characteristics of the subject's eye. This prevents the subject's information from being entered incorrectly and reduces the trouble the examiner has to go through in entering data, allowing each subjective eye examination device to start subjective measurement accurately and smoothly.

<Past subjective measurement data>
In the above description, at least one of objective measurement data and front glasses data is used as data corresponding to the identifier, but the present invention is not limited to this. Furthermore, subjective measurement data, which is a past subjective measurement result of a subject who is to undergo a subjective measurement, may be used as the data.

In this case, for example, the database may further store subjective measurement data measured on different days (measured in the past) in association with each identifier. For example, the information processing device may obtain subjective measurement data corresponding to the identifier from the database based on the identifier received from the reading device, and set initial values of the corrective optical system when subjectively measuring the optical characteristics of the test eye based on the subjective measurement data. With this configuration, for example, the subjective measurement data can be used instead of the front glasses data or the objective measurement data, so that the initial values can be set smoothly.

In the above, a configuration has been described in which, as data corresponding to an identifier, in addition to at least one of objective measurement data and front glasses data, subjective measurement data can be used, but this is not limited to this. At least one of objective measurement data, front glasses data, and subjective measurement data may be used as data corresponding to an identifier. In this case, for example, the database may store at least one of objective measurement data, front glasses data, and subjective measurement data in association with each identifier. For example, the information processing device may acquire at least one of objective measurement data, front glasses data, and subjective measurement data corresponding to the identifier from the database based on the identifier received from the reading device, and set an initial value of the correction optical system when subjectively measuring the optical characteristics of the test eye based on at least one of objective measurement data, front glasses data, and subjective measurement data.

For example, the subjective measurement data may be data obtained by subjectively measuring the optical characteristics of the subject's eye. For example, the optical characteristics of the subject's eye that are subjectively measured include ocular refractive power (e.g., spherical power, cylindrical power, cylindrical axis angle, etc.), polarization characteristics, etc. The subjective measurement data may be obtained by the same device as the subjective optometry device that performs the subjective measurement, or may be obtained by a different device.

<Initial value settings>
For example, the information processing device may automatically set the initial value based on the identifier received from the reading device. Also, for example, the information processing device may be configured to set the initial value through an operation of the examiner or the subject based on the identifier received from the reading device.

For example, a case where the initial value is automatically set will be described. For example, when the information processing device receives identifier information, it may automatically acquire at least one of the objective measurement data and the front glasses data corresponding to the identifier from the database, and automatically set the initial value of the correction optical system based on at least one of the objective measurement data and the front glasses data. With such a configuration, for example, when the reading device reads the identifier, data can be acquired quickly, and the initial value is set, so that the subject or examiner can easily set to start subjective measurement without operating the information processing device. In particular, when the subject uses the information processing device to perform the test himself (performs a self-test), it is difficult for the subject to understand the state and operation method of the information processing device, and therefore this technology is useful.

For example, the information processing device will be described as setting an initial value through the operation of the examiner or subject based on the identifier received from the reading device. For example, when the information processing device receives the identifier information, it may ask the examiner or subject whether or not to acquire at least one of the objective measurement data and the front glasses data corresponding to the identifier from the database. In this case, for example, the information processing device may display a confirmation screen for whether or not to acquire data on the display screen of the information processing device, and allow the examiner or subject to select whether or not to acquire. Also, for example, the information processing device may ask the examiner or subject whether or not to set the data as an initial value of the correction optical system after acquiring at least one of the objective measurement data and the front glasses data corresponding to the identifier from the database. In this case, for example, the information processing device may display a confirmation screen for whether or not to set the data as an initial value of the correction optical system based on the acquired data on the display unit of the information processing device, and allow the examiner or subject to select whether or not to set the initial value. With such a configuration, it is possible to smoothly carry out the initial setting when starting the subjective measurement for the examiner or subject. Even if the examiner or subject mistakenly reads a different identifier, it can be easily corrected. Also, because the examiner or subject can decide whether or not to set the initial value, if there is something unusual about the acquired data, it is possible to take appropriate measures according to the situation.

<Storage in database>
For example, the subjective optometry system may include a setting means (e.g., the control unit 71) that associates the identifier with the data and stores it in the database. In this case, for example, the subjective optometry system may include a data acquisition means (e.g., the control unit 71) and a database setting means. For example, the data acquisition means may acquire at least one of the objective measurement data and the front glasses data. Also, for example, the database setting means may associate at least one of the objective measurement data and the front glasses data acquired by the data acquisition means with the identifier and store it in the database. With this configuration, for example, the identifier and the data are stored in the database in an appropriate association state for each subject. Therefore, by reading the identifier, appropriate data is acquired for each subject.

For example, the data acquisition means may be configured to acquire at least one of the objective measurement data and the front glasses data by receiving data input to the subjective optometry system by input from the operator when acquiring at least one of the objective measurement data and the front glasses data. Also, for example, the data acquisition means may be configured to acquire at least one of the objective measurement data and the front glasses data by receiving data measured by a device other than the subjective optometry device (for example, an objective measurement device or a lens meter, etc.). Also, for example, the acquisition means may be configured to acquire at least one of the objective measurement data and the front glasses data by measuring the objective measurement data and the front glasses data when acquiring at least one of the objective measurement data and the front glasses data.

<Database settings>
For example, the database can be set in any configuration. For example, any of the storage means (e.g., the storage means 22) included in each of the subjective eye examination devices may be used as the database. Also, for example, a dedicated storage means (e.g., the database 72) dedicated to the database may be used as the database.

For example, a case where the storage means of a subjective optometry device is used as a database will be described. For example, each of the multiple subjective optometry devices has a storage means, and the database may be set in the storage means of one of the multiple subjective optometry devices. In this case, for example, the storage means to be used as the database is selected from the storage means each of the multiple subjective optometry devices has. For example, a subjective optometry system is constructed by connecting another subjective optometry device (for example, an information processing device) to the storage means used as the database. With such a configuration, for example, a separate dedicated configuration for providing a database is not required, and a subjective optometry system can be constructed with a simple configuration.

In addition, for example, a case where a dedicated storage means dedicated to the database is used as the database will be described. For example, the database may be a dedicated storage means different from the storage means of the subjective optometry device, and may be set in a dedicated storage means provided exclusively for setting the database. In this case, for example, each subjective optometry device (e.g., an information processing device) is connected to the dedicated storage means used as the database to construct a subjective optometry system. With this configuration, data can be acquired smoothly without putting a load on the storage means of a specific subjective optometry device. Note that the dedicated storage means may be a storage means of a personal computer (hereinafter referred to as a "PC") provided for the database. Of course, the dedicated storage means is not limited to the storage means of a PC. For example, a storage means of a server, a mobile terminal, or a smartphone may be used. Of course, a storage means (memory) having only a storage function may be used.

For example, the storage means of the subjective eye examination device, the dedicated storage means for the database, and the storage means used as the database may be switchable. For example, each of the multiple subjective eye examination devices has a storage means. Also, for example, the device may be provided with a dedicated storage means different from the storage means, which is provided exclusively for setting the database, and a selection means (for example, the control unit 71) that allows selective setting of the storage means to be used as the database among the storage means.

In this case, for example, the constructor of the subjective eye examination system may select and set the storage means in which the database is set. That is, the constructor uses an operation means for setting (for example, the operation unit 73) to select the storage means to be used as the database. As an example of a configuration for making a selection, for example, the storage means that can be used as the database may be displayed on the display screen of the operation means, and the constructor may operate the operation means to select the storage means to be used as the database from among the storage means displayed on the display screen of the operation means. For example, the selection means may set the storage means selected by the operation means as the database. Of course, the storage means may be automatically selected by the control unit of the operation means for setting. Note that, for example, at least one of a PC, a mobile terminal, a smartphone, etc. may be used as the operation means. Of course, an operation means different from the above may be used.

As described above, for example, when setting up a database, the configuration in which the database is set can be changed depending on the location where multiple subjective optometry devices are installed, making it possible to build a subjective optometry system appropriate for the examiner's purpose. As an example, in the case of a subjective optometry system in which multiple subjective optometry devices are arranged in a common building (e.g., a store, a hospital, etc.) (e.g., common building cooperation), by setting the database in the storage means of the subjective optometry devices, a separate dedicated configuration for setting up the database is not required, and a subjective optometry system can be built with a simple configuration. Also, as an example, in the case of a subjective optometry system in which multiple subjective optometry devices are arranged in different buildings (e.g., a distant store, a distant hospital, etc.) (e.g., common building cooperation), by setting the database in a dedicated storage means provided exclusively for the database, it becomes possible to smoothly acquire data without putting a load on the storage means of a specific subjective optometry device.

In the above description, for example, when the storage means of the subjective optometry device is used as a database, a relay unit (e.g., relay unit 19) of the subjective optometry device may be used as the storage means. In this case, for example, a relay unit may be provided that is connected to the subjective optometry device and an information processing device, relays an operation signal from the information processing device to the subjective optometry device, and enables the subjective optometry device to be operated based on the operation signal. Furthermore, for example, the relay unit may also be used as the storage means. In this way, for example, by having the relay unit also serve as the storage means, data corresponding to the identifier can be easily obtained even when various types of information processing devices different for each subjective optometry device are used.

For example, the relay unit may be configured to relay the operation signal from the information processing device so that each component of the subjective optometry device can be operated by the operation signal from the information processing device. For example, the relay unit may be configured to convert the operation signal from the information processing device into a drive signal that drives the subjective optometry device so that the subjective optometry device can be operated by the operation signal from the information processing device. In other words, the relay unit may be configured to convert the operation signal from the information processing device into a drive signal that can drive the subjective optometry device according to various subjective optometry devices. Of course, for example, the relay unit may be configured to only relay the operation signal. With such a configuration, for example, even when various subjective optometry devices are used, communication corresponding to the subjective optometry device can be performed, so that the subjective optometry device can be operated appropriately. Also, for example, even when various information processing devices are used, communication corresponding to the information processing device can be performed, so that the subjective optometry device can be operated appropriately.

<Remote Information Processing Device>
For example, the subjective optometry system may include a remote information processing device (e.g., a remote information processing device 80) capable of operating the subjective optometry device from a remote access destination. In this case, for example, the subjective optometry system may include a remote information processing device connected to the information processing device, and a remote information processing device for operating at least one of the subjective optometry devices via the information processing device by being remotely accessed by the information processing device. Also, for example, the information processing device may output at least one of the acquired objective measurement data and the front glasses data to the remote information processing device, thereby notifying the remote information processing device of at least one of the objective measurement data and the front glasses data.

With this configuration, for example, it is possible to provide data to a remote information processing device that is remotely accessed by the information processing device of the subjective optometry device that is requesting data corresponding to the identifier. This allows the examiner to check the subject's data even when operating the subjective optometry device from a remote access destination (e.g., a remote location), and makes it possible to set appropriate initial values for the subjective optometry device that should be initialized.

For example, the remote information processing device receives at least one of the objective measurement data and the pre-spectacle data output from the information processing device. For example, the remote information processing device may be configured to output the received data so that the examiner can confirm it. In this case, for example, the remote information processing device may be equipped with an output means (for example, a control unit 81). For example, the output means may be configured to display the data on a display unit (for example, a display unit 84) that the remote processing device has. Also, for example, the output means may be configured to print the data.

Note that, for example, the instruction to set the initial value may be instructed by the remote information processing device, or may be instructed by the information processing device. For example, when the remote information processing device gives an instruction to set the initial value, the remote information processing device may output an instruction signal to set the initial value of the correction optical system when subjectively measuring the optical characteristics of the subject's eye. For example, the information processing device may set the initial value of the correction optical system based on at least one of the objective measurement data and the front glasses data, based on the instruction signal from the remote information processing device. Note that, for example, the setting of the initial value based on the instruction may be performed by the information processing device, or may be performed by the remote information processing device.

For example, when the information processing device issues instructions for setting initial values, the examiner who has confirmed the data on the remote information processing device may contact the examiner or subject operating the information processing device using a communication tool (e.g., a microphone, speaker, etc.). For example, the examiner or subject operating the information processing device may operate the information processing device and issue instructions for setting initial values, based on the contact from the examiner operating the remote information processing device.

The output of the instruction signal related to the initial value can be achieved by applying the configuration described in the information processing device in <Initial value setting> above. As an example, the confirmation screen of the information processing device in <Initial value setting> can be displayed on a remote information processing device, and the remote information processing device can be operated by the examiner or subject to output the instruction signal.

In the above description, at least one of objective measurement data and front glasses data is used as data corresponding to an identifier, but this is not limiting. Furthermore, subjective measurement data, which is a past subjective measurement result of a subject undergoing a subjective measurement, may be used as the data. In this case, for example, the subjective eye examination system may be configured such that an information processing device outputs at least one of the acquired objective measurement data, front glasses data, and subjective measurement data to a remote information processing device, thereby notifying the remote information processing device of at least one of the objective measurement data, front glasses data, and subjective measurement data.

In the above configuration, a subjective optometry system using a remote information processing device is described using an example of a configuration having multiple subjective optometry devices, but this is not limited to this. A subjective optometry system using a remote information processing device may also have at least one subjective optometry device.

In this case, for example, the subjective optometry system may include a corrective optical system that changes the optical characteristics of the target light beam presented to the subject's eye, an information processing device for operating the subjective optometry device, a reading device connected to the information processing device, reading an identifier provided for each subject and outputting the information of the read identifier to the information processing device, and a subjective optometry device used to subjectively measure the optical characteristics of the subject's eye, a database in which at least one of objective measurement data and front glasses data is stored in association with each identifier, and a remote information processing device connected to the information processing device, for operating the subjective optometry device via the information processing device by remotely accessing the information processing device. Also, for example, the information processing device may obtain at least one of the objective measurement data and front glasses data corresponding to the identifier from the database based on the identifier received from the reading device, and output at least one of the objective measurement data and front glasses data obtained to the remote information processing device, thereby notifying the remote information processing device of at least one of the objective measurement data and front glasses data. With this configuration, even when operating the subjective optometry device from a remote access destination (e.g., a remote location), the examiner can check the subject's data and set appropriate initial values for the subjective optometry device.

For example, the remote information processing device may output an instruction signal for setting an initial value of the correction optical system when subjectively measuring the optical characteristics of the test eye, and the information processing device may set the initial value of the correction optical system based on at least one of the objective measurement data and the front glasses data based on the instruction signal from the remote information processing device.

<Corrective optical system>
For example, the corrective optical system may be configured to change the optical characteristics (e.g., at least one of spherical power, cylindrical power (cylindrical power), astigmatism axis angle, polarization characteristics, and amount of aberration, etc.) of the visual target light beam presented to the test eye. For example, the configuration for changing the optical characteristics of the visual target light beam may be a configuration for controlling an optical element. For example, the optical element may be a configuration using at least one of a spherical lens, a cylindrical lens, a cross cylinder lens, a rotary prism, a wavefront modulation element, etc. Of course, for example, the optical element may be an optical element different from the optical elements described above.

For example, the correction optical system may be configured to correct the spherical power of the test eye by optically changing the presentation position (presentation distance) of the optotype relative to the test eye. In this case, for example, the configuration for optically changing the presentation position (presentation distance) of the optotype may be a configuration for moving a light source (e.g., a display) emitting the optotype light beam in the optical axis direction. Also, in this case, for example, a configuration for moving an optical element (e.g., a spherical lens) arranged in the optical path in the optical axis direction may be used. Of course, the correction optical system may be configured to combine a configuration for controlling an optical element with a configuration for moving an optical element arranged in the optical path in the optical axis direction.

For example, the correction optical system may be an optometry unit (phoropter) that switches between optical elements placed in front of the subject's eye. For example, the optometry unit may be configured to include a pair of left and right lens chamber units that switch between optical elements in the examination window. For example, the optometry unit may have a lens disk on which multiple optical elements are arranged on the same circumference, and a driving means for rotating the lens disk, and the optical elements may be electrically switched by driving the driving means (e.g., a motor).

For example, the correction optical system may be configured such that an optical element is disposed between an optical member for guiding the visual target light beam from the light projection optical system toward the test eye and the light source of the light projection optical system, and the optical characteristics of the visual target light beam are changed by controlling the optical element. That is, the correction optical system may be configured as a phantom lens refractometer (phantom correction optical system). In this case, for example, the visual target light beam corrected by the correction optical system is guided to the test eye via the optical element.

For example, in this embodiment, the correction optical system has a pair of right and left corrective optical systems. For example, the right and left corrective optical systems may be configured with the same components as the components constituting the right and left corrective optical systems. For example, the right and left corrective optical systems may be configured with at least some components different from the components constituting the right and left corrective optical systems. For example, the right and left corrective optical systems may be configured with at least some components shared between the components constituting the right and left corrective optical systems. For example, the right and left corrective optical systems may be configured with separate components constituting the right and left corrective optical systems.

<Information Processing Device>
For example, the information processing device accepts various operation instructions from the examiner or the subject. For example, at least one of a PC, a server, a mobile terminal, a smartphone, etc. may be used as the information processing device. Of course, the information processing device is not limited to the above configuration. For example, at least one of various information processing devices capable of processing various information may be used as the information processing device.

For example, the information processing device may include an input means (e.g., an operation unit 23) for the examiner or subject to input various operation instructions. For example, the input means may be at least one of user interfaces such as a touch panel, a mouse, a joystick, a keyboard, and a microphone.

<Optotype presentation device>
For example, among a plurality of subjective eye examination devices, at least one of the subjective eye examination devices may include an optotype presenting device for emitting an optotype light beam. For example, the optotype presenting device may have an optotype presenting section (e.g., optotype presenting section 16) that emits an optotype light beam, and may project the optotype light beam emitted from the optotype presenting section toward the subject's eye. For example, the optotype presenting device may have a projection optical system having at least one optical member or the like that projects the optotype light beam toward the subject's eye.

For example, the optotype presenting unit may be configured to use a display. For example, the display may be either an LCD (Liquid Crystal Display) or an organic EL (Electro Luminescence) display. For example, the display may display test optotypes such as a Landolt ring optotype.

For example, the visual target presenting unit may be a DMD (Digital Micromirror Device). DMDs generally have high reflectance and are bright. Therefore, the light intensity of the visual target light beam can be maintained compared to when a liquid crystal display using polarized light is used.

For example, the optotype presenting unit may have a configuration including a visible light source for presenting optotypes and an optotype plate. In this case, for example, the optotype plate is a rotatable disk plate having multiple optotypes. The multiple optotypes include, for example, optotypes for visual acuity testing used during subjective measurement. For example, the optotypes for visual acuity testing are prepared for each visual acuity value (visual acuity values 0.1, 0.3, ..., 1.5). For example, the optotype plate is rotated by a motor or the like, and the optotypes are switched and positioned on the optical path along which the optotype light beam is guided to the subject's eye. Of course, an optotype presenting unit other than the above configuration may be used as the optotype presenting unit that projects the optotype light beam.

For example, the projection optical system may have at least one optical element that projects the visual target light beam toward the subject's eye. For example, the projection optical system may have an optical element (e.g., a concave mirror 13) that guides the image of the visual target light beam emitted from the visual target presenting unit to the subject's eye so that it is optically at a predetermined test distance.

For example, the projection optical system projects the visual target light beam emitted from the visual target presenting unit toward the subject's eye by shifting the visual target light beam with respect to the optical axis of the optical member. In this case, for example, the visual target presenting unit may be positioned such that the normal direction of the visual target presenting unit to the screen is inclined with respect to the optical axis of the optical member.

For example, the optical member may be at least one of a concave mirror, a lens, and the like. For example, when the optical member is a concave mirror, the projection optical system may have a reflecting member that reflects the visual target light beam emitted by the visual target presenting unit toward the concave mirror and guides the visual target light beam reflected by the concave mirror from the inside of the housing toward the outside. This configuration can reduce the number of members of the projection optical system, making the subjective eye examination device more space-saving. Of course, the projection optical system is not limited to the above configuration, and may be configured to project the visual target light beam toward the subject's eye by shifting the visual target light beam emitted from the visual target presenting unit and making it incident on the optical member with the optical axis shifted.

For example, the reflecting member may be a mirror (e.g., a total reflection mirror, a half mirror, etc.), a prism, etc. Of course, the reflecting member is not limited to this, and may be any member that guides the visual target light beam toward the subject's eye.

For example, the projection optical system may have a pair of right-eye and left-eye projection optical systems. In this case, for example, a pair of optotype presentation units may be used. For example, the right-eye and left-eye projection optical systems may be configured with the same members as the members constituting the right-eye projection optical system and the members constituting the left-eye projection optical system. For example, the right-eye and left-eye projection optical systems may be configured with at least some members different from the members constituting the right-eye projection optical system and the members constituting the left-eye projection optical system. For example, the right-eye and left-eye projection optical systems may be configured with at least some members shared between the members constituting the right-eye projection optical system and the members constituting the left-eye projection optical system. For example, the right-eye and left-eye projection optical systems may be configured with separate members constituting the right-eye projection optical system and the members constituting the left-eye projection optical system.

<Alert output>
For example, in the present embodiment, the subjective optometry system may output an alert to support the setting of the initial value. That is, for example, in the subjective optometry system, an alert may be output to support the determination of whether the initial value is appropriate or not. For example, the subjective optometry system may include a subjective optometry device, a database, an information processing device, and an alert output means (for example, the control unit 21).

In this case, for example, the subjective eye examination device may be configured to have a correction optical system that changes the optical characteristics of the visual target light beam presented to the subject's eye. In this case, for example, the database may store at least one of objective measurement data obtained by objectively measuring the optical characteristics of the subject's eye and front glasses data obtained by measuring the optical characteristics of the glasses worn by the subject, in correspondence with each identifier provided for each subject. In this case, for example, the information processing device may acquire data including at least one of the objective measurement data and front glasses data corresponding to the identifier from the database based on the identifier, and set the initial value of the correction optical system when subjectively measuring the optical characteristics of the subject's eye based on the acquired data. In this case, for example, the alert output means may output an alert to confirm whether the data (including at least one of the objective measurement data and front glasses data) may be set as the initial value based on whether the data satisfies the evaluation criterion. Each of the above devices can be arranged at any position in the subjective eye examination system.

According to such a configuration, for example, when various data are acquired based on an identifier and set as the initial values of the corrective optical system when subjectively measuring the optical characteristics of the subject's eye, an alert is output according to the evaluation criteria, making it possible to check the appropriateness of the initial value setting of the data by referring to the alert, and to set appropriate initial values for the subjective eye examination device. As a result, even when the initial values are set by an examiner or subject with little knowledge or experience in eye examination, the initial values can be set appropriately, making it possible to proceed with the eye examination smoothly.

For example, in the alert output configuration, the identifier may be acquired by an identifier acquisition means (e.g., a reading device 30). For example, the identifier may be read and acquired by a reading device that reads an identifier provided for each subject. In this case, for example, a reading device may be used as the identifier acquisition means, and the reading device may acquire the identifier by reading the identifier provided for each subject. For example, the reading device may output information of the read identifier to an information processing device. Note that, for example, the reading device and the information processing device may be connected directly, or may be connected via another member.

Note that, for example, the identifier acquisition means for acquiring the identifier is not limited to the above configuration, and various configurations can be used. For example, the identifier acquisition means may be configured to acquire the identifier by receiving an identifier input to the subjective optometry device when the examiner or subject operates an operation unit (e.g., operation unit 23). In this case, for example, the examiner or subject operates the operation unit to input a string of letters or numbers, and the input string of letters or numbers is acquired as an identifier. Note that the identifier acquisition means can be placed at any position in the subjective optometry system. As an example, it may be configured to be provided in an information processing device.

For example, the output of the alert by the alert output means may be at least one of displaying (outputting) the alert on a display unit (e.g., display unit 24, display unit 84, etc.), printing (outputting) the alert on a medium (e.g., paper, etc.), outputting the alert as an audio guide, transmitting (outputting) the alert to another device, etc. Of course, the output of the alert may be configured differently from the above.

For example, the alert output means can be provided in any device. For example, the alert output means may be configured to be provided in an information processing device. In this case, for example, the alert output means may be configured to display (output) an alert on a display unit of the information processing device. For example, the alert output means may be configured to output an alert as an audio guide from a speaker or the like provided in the remote information processing device.

Of course, the output of the alert different from the above may be configured differently from the above. For example, the alert output means may transmit (output) an alert from the information processing device to another device (for example, a remote information processing device, etc.). In this case, for example, the subjective optometry system may be a remote information processing device connected to the information processing device, and may include a remote information processing device for operating the subjective optometry device via the information processing device by remotely accessing the information processing device. Also, for example, the information processing device may output the acquired data to the remote information processing device, thereby causing the remote information processing device to notify the data. Also, for example, the alert output means may output an alert to the remote information processing device to confirm whether the data may be set as an initial value based on whether the data satisfies the evaluation criterion. With such a configuration, for example, it is possible to provide data to a remote information processing device that is remotely accessed by the information processing device of the subjective optometry device that is requesting data corresponding to the identifier. Also, since the alert can be confirmed from the remote destination, it becomes easy to determine whether the provided data should be set as an initial value. This allows the examiner to check the subject's data and the appropriateness of the initial value settings of the data, even when operating the subjective eye examination device from a remote access destination (e.g., a remote location). This allows the examiner at the remote location to easily check the status of the data, even when setting the initial values, and therefore allows the initial values to be set appropriately from the remote location, making it possible to provide good follow-up eye examinations.

For example, when the alert output means outputs an alert from the information processing device to a remote information processing device (another device), the remote information processing device receives the alert output from the information processing device. For example, the remote information processing device may output the received alert so that the examiner can check it. In this case, for example, the remote information processing device may be equipped with an output means. For example, the output means may display the alert on a display unit that the remote processing device has. Also, for example, the output means may be configured to print the alert.

For example, the alert output means may be configured to be provided in the remote information processing device. In this case, for example, the alert output means may be configured to display on a display unit (e.g., display unit 84) of the remote information processing device. Also, for example, the alert output means may be configured to output an alert as a voice guide from a speaker or the like of the remote information processing device. Of course, the output of an alert different from the above may be configured differently from the above.

After the alert is output, the examiner or subject checks the alert and sets the initial values as appropriate. For example, even if an alert has been output, the examiner or subject may set the acquired data as the initial values and start the examination. Also, for example, if an alert has been output, the examiner or subject may set only at least some of the values of the acquired data as the initial values and start the examination. In this case, for example, in the acquired data, at least one of the spherical power, cylindrical power, cylindrical axis, polarization characteristics, aberration amount, interpupillary distance (PD), etc. may be set as the initial value, and the others may be set to default values (for example, 0, etc.). Also, for example, if an alert has been output, the examiner or subject may start the examination without setting the acquired data as the initial value. In this case, for example, the default value may be set as the initial value.

Note that, for example, the instruction to set the initial value may be instructed by the remote information processing device, or may be instructed by the information processing device. For example, when the remote information processing device gives an instruction to set the initial value, the remote information processing device may output an instruction signal to set the initial value of the correction optical system when subjectively measuring the optical characteristics of the subject's eye. For example, the information processing device may set the initial value of the correction optical system based on at least one of the objective measurement data and the front glasses data, based on the instruction signal from the remote information processing device. Note that, for example, the setting of the initial value based on the instruction may be performed by the information processing device, or may be performed by the remote information processing device.

For example, the evaluation criterion may be an evaluation criterion for evaluating the reliability of the objective measurement data. In this case, for example, the data (including at least one of the objective measurement data and the front glasses data) includes at least the objective measurement data, and the evaluation criterion may be an evaluation criterion set for evaluating the reliability of the objective measurement data. For example, the alert output means may output an alert based on whether the reliability satisfies the evaluation criterion. In this way, for example, when measuring the objective measurement data, by using information on the calculated reliability as an evaluation criterion for outputting an alert, it is possible to easily check the accuracy of the objective measurement data, and an alert can be easily output without requiring any additional complex control or configuration.

For example, the evaluation criterion for evaluating the reliability may be information for evaluating the reliability coefficient acquired when the objective measurement data is measured. In this case, for example, a threshold value may be set as the evaluation criterion for evaluating the reliability. For example, the alert output means may output an alert based on whether the reliability coefficient acquired when the objective measurement data is measured satisfies a set threshold value (for example, whether it exceeds a threshold value). As an example, for example, the alert output means may output an alert when the reliability coefficient acquired when the objective measurement data is measured does not satisfy a set threshold value (is lower than the threshold value). Note that, for example, the threshold value may be set in advance based on an experiment, a simulation, or the like. For example, the threshold value may be configured to be arbitrarily set by the examiner.

An example of the reliability coefficient will be described. For example, an objective measurement device for measuring objective measurement data will be described by projecting measurement light onto the fundus of the test eye, extracting the fundus reflected light as a ring image and capturing it on a two-dimensional image sensor, and measuring the ocular refractive power of the test eye based on the ring image captured on the two-dimensional image sensor. In this case, for example, the deviation in the meridian direction between the actual measurement line when the position of the ring image is detected and the approximation curve when the actual measurement line is approximated may be calculated for each predetermined divided area, and the calculation results for each divided area may be classified in stages and output as the reliability coefficient for each divided area. Of course, the calculation method of the reliability coefficient is not limited to the above method. For example, the reliability coefficient may be any one that can grasp the reliability of the objective measurement data.

Also, for example, the evaluation criterion may be an evaluation criterion for evaluating the difference information between the objective measurement data and the front glasses data. In this case, for example, the data (data including at least one of the objective measurement data and the front glasses data) includes the objective measurement data and the front glasses data, and the evaluation criterion may be an evaluation criterion set for evaluating the difference information between the objective measurement data and the front glasses data. For example, the alert output means may output an alert based on whether or not the difference information satisfies the evaluation criterion. In this way, for example, by using the difference information between the objective measurement data and the front glasses data as the evaluation criterion for outputting an alert, it is possible to more accurately check the accuracy of the objective measurement data, and more accurately output an alert.

For example, a threshold value may be set as an evaluation criterion for evaluating the difference information between the objective measurement data and the front glasses data. For example, the alert output means may output an alert based on whether the difference information satisfies a set threshold value (for example, whether it exceeds a threshold value). As an example, the alert output means may output an alert when the difference information (for example, a difference value between parameters) does not satisfy a set threshold value (the difference is greater than the threshold value). Note that, for example, the threshold value may be set in advance based on experiments, simulations, etc. For example, the threshold value may be configured to be arbitrarily set by the examiner.

For example, the difference information between the objective measurement data and the front glasses data may be obtained by differential processing of corresponding parameters in the objective measurement data and the front glasses data. As an example, the difference information (e.g., the difference value between parameters) may be obtained by differential processing of the ocular refractive power in the objective measurement data and the refractive power in the front glasses data. Note that, for example, when comparing the ocular refractive power in the objective measurement data and the refractive power in the front glasses data, at least one or more parameters of the spherical power, the cylindrical power, and the cylindrical axis angle may be compared.

For example, when difference information of multiple parameters is acquired, it may be determined whether each difference information (for example, at least one of the difference information of spherical power, difference information of cylindrical power, difference information of cylindrical axis angle, difference information of polarization characteristics, difference information of interpupillary distance, etc.) satisfies a threshold value set for each parameter. In this case, for example, the alert output means may output an alert when at least one of the difference information of each difference information does not satisfy the evaluation criterion (for example, a threshold value). Also, in this case, for example, the alert output means may output an alert only when all of the difference information of each difference information does not satisfy the evaluation criterion (for example, a threshold value). That is, for example, the alert output means may not output an alert if at least one of the difference information of each difference information satisfies the evaluation criterion (for example, a threshold value).

For example, the evaluation criterion may be an evaluation criterion for evaluating whether or not the data includes at least one of the data of the left and right test eyes and the data of the left and right front glasses. In this case, for example, the evaluation criterion may be an evaluation criterion set for evaluating whether or not the objective measurement data includes objective measurement data of the left and right test eyes, and whether or not the front glasses data includes front glasses data of the left and right front glasses. For example, the alert output means may output an alert based on whether or not the data satisfies the evaluation criterion. In this way, for example, by using the presence or absence of left and right data as the evaluation criterion for outputting an alert, an alert can be easily output without requiring any additional complex control or configuration.

For example, when only objective measurement data is acquired as data, the alert output means may output an alert if the objective measurement data does not include objective measurement data of the left and right test eyes, indicating that the data does not meet the evaluation criteria. Also, for example, when only front glasses data is acquired as data, the alert output means may output an alert if the front glasses data does not include front glasses data of the left and right front glasses, indicating that the data does not meet the evaluation criteria.

For example, when both objective measurement data and front glasses data are acquired as data, if at least one of the objective measurement data and front glasses data does not include data on the left and right (left and right test eyes or left and right front glasses), an alert may be output as the data does not meet the evaluation criteria. In other words, the alert output means may output an alert when there is no left and right data for either the objective measurement data or the front glasses data, regardless of the presence or absence of left and right data in the other data. For example, when both objective measurement data and front glasses data are acquired as data, if both the objective measurement data and front glasses data do not include data on the left and right (left and right test eyes or left and right front glasses), an alert may be output as the data does not meet the evaluation criteria.

For example, in the evaluation of whether objective measurement data includes data on the left and right examinee's eyes, if at least one of the parameters (e.g., at least one of spherical power, astigmatism power, astigmatism axis angle, etc.) that were planned to be acquired as objective measurement data is not included, it may be evaluated as not including data on the left and right examinee's eyes. Also, for example, in the evaluation of whether objective measurement data includes data on the left and right examinee's eyes, if all of the parameters (e.g., at least one of spherical power, astigmatism power, astigmatism axis angle, etc.) that were planned to be acquired as objective measurement data are not included, it may be evaluated as not including data on the left and right examinee's eyes.

For example, the evaluation criteria are not limited to the above evaluation criteria, and may be any evaluation criteria that can confirm the appropriateness (e.g., reliability) of the initial value settings for the acquired data. Also, for example, the evaluation criteria may be set by combining multiple evaluation criteria (e.g., the above evaluation criteria).

For example, after an alert is output, an initial value based on the acquired data may be set. In this case, the acquired data may be maintained, and the initial value may be set based on the maintained data. If a portion of the data is missing, the initial value may be set based on the missing portion by using other data. As an example, if the acquired data includes only objective measurement data of one of the left and right test eyes (or front glasses data of one of the left and right front glasses), the other acquired data may be used as the initial value. As an example, if both objective measurement data and front glasses data are acquired as data, and one of the data is missing, at least a portion of the other data may be used to set the initial value.

Also, for example, after an alert is output, a different initial value may be set without using the acquired data. For example, when setting a different initial value without using the acquired data, an arbitrary value may be set as the initial value. Also, for example, when setting a different initial value without using the acquired data, a default value (for example, 0) may be set.

Note that the present disclosure is not limited to the subjective eye examination system described in this embodiment. For example, terminal control software (programs) that perform the functions of the following embodiments can be supplied to a system or device via a network or various storage media, etc., and the control device (e.g., a CPU, etc.) of the system or device can read and execute the program.

In this case, for example, a subjective optometry system used for subjectively measuring the optical characteristics of an eye examination, the subjective optometry system includes a subjective optometry device having a corrective optical system that changes the optical characteristics of a target light beam presented to the eye to be examined, a reading device that reads an identifier provided for each subject, a database in which at least one of objective measurement data that objectively measures the optical characteristics of the eye to be examined and front-spectacles data that measures the optical characteristics of the glasses worn by the subject is stored in correspondence with each identifier, and an information processing device that acquires data including at least one of the objective measurement data and front-spectacles data that correspond to the identifier from the database based on the identifier received from the reading device, and sets an initial value of the corrective optical system when subjectively measuring the optical characteristics of the eye to be examined based on the acquired data, and an alert output step may be executed to output an alert to confirm whether the data may be set as the initial value based on whether the data satisfies an evaluation criterion.

<Example>
Hereinafter, a typical embodiment of the present disclosure will be described with reference to the drawings. For example, Fig. 1 is a block diagram showing a schematic configuration of a subjective optometry system. Fig. 2 is a block diagram showing a schematic configuration of each device of the subjective optometry system.

For example, as shown in FIG. 1, the subjective optometry system 100 of this embodiment includes a first subjective optometry device 1, a second subjective optometry device 1A, a third subjective optometry device 1B, an objective optometry device 50, a lens characteristic measuring device 60, and a control device 70.

For example, the first subjective optometry device 1, the second subjective optometry device 1A, and the third subjective optometry device 1B are used to subjectively measure the optical characteristics of the subject's eye. In this embodiment, the optical characteristic of the subject's eye measured by the first subjective optometry device 1, the second subjective optometry device 1A, and the third subjective optometry device 1B is the ocular refractive power. For example, the measured ocular refractive power may be at least one of the spherical power, cylindrical power, and astigmatism axis angle of the subject's eye, etc.

In this embodiment, the first subjective optometry device 1, the second subjective optometry device 1A, and the third subjective optometry device 1B are described as having the same configuration. Of course, the first subjective optometry device 1, the second subjective optometry device 1A, and the third subjective optometry device 1B may have at least a part of a different configuration.

For example, the objective optometry device 50 and the lens characteristic measuring device 60 are connected to the control device 70 in a state in which they can communicate with each other via a network (e.g., the Internet, etc.). More specifically, for example, the objective optometry device 50 and the lens characteristic measuring device 60 are connected to the control unit 71 of the control device 70 in a state in which they can communicate with each other. In addition, each of the first subjective optometry device 1, the second subjective optometry device 1A, and the third subjective optometry device 1B is connected to the control device 70 in a state in which they can communicate with each other via a network. For example, various standards such as LAN can be adopted as the connection standard between the various devices.

For example, the control device 70 is responsible for various controls of the subjective eye examination system 100. The control device 70 can be any of various information processing devices (e.g., at least one of a PC, a server, and a mobile terminal). The control device 70 includes a control unit (e.g., a CPU) 71 that is responsible for control, a database 72 that stores various data, and an operation unit 73 for configuring various settings of the subjective eye examination system.

For example, the operation unit 73 may use at least one of user interfaces such as a touch panel, a mouse, a joystick, and a keyboard. In this embodiment, the operation unit 73 is a touch panel. Therefore, in this embodiment, a display is used as the operation unit 73, and the display also functions as the operation unit. For example, the database 72 stores at least one of objective measurement data and front glasses data in association with each identifier. It is also possible to change the configuration of the control device 70. First, multiple devices may cooperate to function as the control device 70. For example, the control device that controls various controls in the subjective optometry system 100 and the control device equipped with the database 72 may be separate devices. For example, the control unit 71 and the database 72 are connected. Also, for example, the control unit 71 and the operation unit 73 are connected.

For example, the objective eye examination device 50 objectively measures the optical characteristics of the subject's eye. For example, optical characteristics of the subject's eye that are objectively measured include ocular refractive power (e.g., spherical power, cylindrical power, cylindrical axis angle, etc.), polarization characteristics, etc. In this embodiment, an objective measurement means for measuring the ocular refractive power of the subject's eye will be described as an example.

For example, a lens meter is used as the lens characteristic measuring device 60. For example, a lens meter is used to measure the optical characteristics of a spectacle lens. For example, the optical characteristics of a spectacle lens measured by a lens meter include refractive power (e.g., spherical power, cylindrical power, cylindrical axis angle, etc.), polarization characteristics, etc.

Next, the configuration of the subjective eye examination device will be described. In this embodiment, the second subjective eye examination device 1A and the third subjective eye examination device have the same configuration as the first subjective eye examination device 1, so the description of the configuration of the second subjective eye examination device 1A and the third subjective eye examination device will be omitted. Below, the configuration of the subjective eye examination device will be described using the first subjective eye examination device as an example.

For example, the first subjective eye examination device 1 includes an eye refractive power measurement device 10, an optotype presenting device 15, a relay unit 19, an information processing device 20, and a reading device 30.

For example, the eye refractive power measuring device 10 includes a correction optical system 11 and a drive unit 12. The correction optical system 11 changes the optical characteristics of the visual target light beam presented to the test eye. In this embodiment, for example, the correction optical system 11 changes at least one of the optical characteristics, such as the spherical power, cylindrical power, astigmatism axis angle, polarization characteristics, and aberration amount, of the visual target light beam. As an example, the correction optical system 11 of this embodiment changes the optical characteristics of the visual target light beam by switching the optical element placed in the test window in front of the test eye among the multiple optical elements. In the correction optical system 11 of this embodiment, a lens disk for the left eye and a lens disk for the right eye are used, in which multiple optical elements are arranged on the same circumference. Each of the lens disk for the left eye and the lens disk for the right eye may be one or more. For example, at least one of a spherical lens, a cylindrical lens, a cross cylinder lens, a rotary prism, and a wavefront modulation element may be used as the optical element. The driving unit 12 changes the optical characteristics of the visual target light beam by driving the correction optical system 11. In this embodiment, the driving unit 12 drives the correction optical system 11 by rotating each of the lens disks for the left eye and the lens disks for the right eye to switch the optical element placed in the test window. For example, a step motor or the like can be used as the driving unit 12. The driving unit 12 is driven in response to a driving signal.

For example, the optotype presenting device 15 presents a test optotype (for example, at least one of a Landolt ring optotype and a letter) to the eye to be examined and switches the test optotype presented to the eye to be examined. In detail, the optotype presenting device 15 includes an optotype presenting unit 16 and a driving unit 17. The optotype presenting unit 16 presents a test optotype to the eye to be examined. For example, the optotype presenting unit 16 can be at least one of a space-saving optotype projection device that projects the test optotype to the eye to be examined via a concave mirror, a chart projector that projects the test optotype on a screen, and a display that displays the test optotype. The optotype presenting unit 16 is disposed at approximately the same height as the eye refractive power measuring device 10 so that the distance from the eye to be examined is a predetermined optical distance. The driving unit 17 drives the optotype presenting unit 16 to switch the test optotype presented to the eye to be examined. The driving unit 17 is driven according to a driving signal.

For example, the information processing device 20 is used to operate the first subjective eye examination device 1. For example, in this embodiment, a PC is used as the information processing device 20. Of course, the information processing device that can function as the information processing device 20 is not limited to a PC. For example, a server, a mobile terminal, a smartphone, or the like may be used as the information processing device.

For example, the information processing device 20 is placed at a location where subjective eye examinations are performed on subjects (for example, an eyeglass store or a hospital, etc.). The information processing device 20 includes a control unit 21, a storage means (memory) 22, an operation unit 23, and a display unit (display) 24. The control unit 21 is responsible for controlling the information processing device 20. The storage means 22 can store programs and various data, etc. In this embodiment, the eye examination control program is stored in the storage means 22. For example, the operation unit 23 may use at least one user interface such as a touch panel, a mouse, a joystick, a keyboard, etc. For example, the information processing device 20 is connected in a communicable state to the first subjective eye examination device 1 (more specifically, the relay unit 19 of the first subjective eye examination device 1).

For example, the relay unit 19 relays a drive signal between the information processing device 20 and the drive units 12 and 17. For example, the relay unit 19 of this embodiment converts an operation signal received from the information processing device 20 into a drive signal capable of controlling the drive units 12 and 17, and transmits it to the drive units 12 and 17. Furthermore, when the relay unit 19 of this embodiment receives one operation signal for driving both the two drive units 12 and 17 from the information processing device 20, it converts the received one operation signal into two drive signals for driving each of the two drive units 12 and 17, and transmits them to each of the two drive units 12 and 17. For example, the information processing device 20 is connected in a communicable state to the first subjective optometry device 1 (specifically, the relay unit 19 of the first subjective optometry device 1). Also, for example, the information processing device 20 is connected in a communicable state to the control device 70 (specifically, the control unit 21 of the information processing device 20 is connected to the control unit 71 of the control device 70). For this reason, for example, the information processing device 20 is connected in a communicable state to the database 72 via the control unit 71. For example, the information processing device 20 may include a relay unit 19. That is, the information processing device 20 and the relay unit 19 may be configured to be provided integrally.

For example, the reading device 30 is connected to the information processing device 20 and is used to read the identifier provided for each subject and output the information of the read identifier to the information processing device 20. For example, the reading device 30 is an identifier reader (e.g., a QR code (registered trademark) reader, a barcode reader, an identification hole reader, etc.) that corresponds to the identifier being used.

For example, the reading device 30 includes a control unit 31 and a storage means (memory) 32. The control unit 31 controls the reading device 30. The storage means 32 can store programs and various data. In this embodiment, the reading control program is stored in the storage means 32. For example, the reading device 30 is connected to the first subjective eye examination device 1 (more specifically, the information processing device 20 of the first subjective eye examination device 1) in a state in which it can communicate with them. In more detail, for example, the control unit 31 of the reading device 30 is connected to the control unit 21 of the information processing device 20 in a state in which it can communicate with them.

The subjective optometry system 100 can be constructed as any system depending on the application. In other words, the connections between the devices can be connected to any components to construct a subjective optometry system.

<Operation>
The operation of the subjective optometry system 100 in this embodiment will be described below. In the following description of the operation, the operation using the first subjective optometry device 1 will be described as an example of the subjective optometry device. Of course, other subjective optometry devices can perform the same operation as the first subjective optometry device 1. In this embodiment, the case where both objective measurement data and front glasses data are obtained will be described as an example.

First, an identifier issuing device (not shown) issues an identifier for the subject who will be performing the subjective measurement. In this embodiment, for example, the identifier is issued by printing it on paper. Note that, for example, after the identifier is issued, it may be managed in a database for each subject as an identifier for the subject (i.e., a subject's ID). In other words, after the identifier is issued, when a subject undergoes a test on a different day, the subsequent test may be performed using the previously issued identifier without issuing a new identifier. Of course, an identifier may be reissued each time a test is completed, and the test may be performed.

For example, when an identifier is issued, the lens characteristic measuring device 60 is used to measure the eyeglasses worn by the subject, and previous eyeglass data is obtained. Note that in this embodiment, an example is given in which previous eyeglass data measuring the refractive power of the eyeglass lenses is used. Note that the measurement by the lens characteristic measuring device 60 may be omitted as appropriate.

For example, the issued identifier is read by a reading device (not shown) connected to the lens characteristic measuring device 60. Next, the lens characteristic measuring device 60 is driven and the front glasses data is acquired. When the front glasses data is acquired, the identifier read by the reading device is transmitted together with the front glasses data to the control unit 71 of the control device 70. For example, the control unit 71 receives the front glasses data and the identifier, and upon acquisition, associates the front glasses data with the identifier and stores them in the database 72.

Next, the objective measurement device 50 is used to measure the test eye, and objective measurement data of the test eye is obtained. Note that in this embodiment, an example will be described in which objective measurement data measuring the ocular refractive power of the test eye is used. Note that the measurement using the objective measurement device 50 may be omitted as appropriate.

For example, the issued identifier is read by a reading device (not shown) connected to the objective measurement device 50. Next, the objective measurement device 50 is driven and the objective measurement data is acquired. When the objective measurement data is acquired, the identifier read by the reading device is transmitted to the control unit 71 of the control device 70 together with the objective measurement data. For example, the control unit 71 receives the objective measurement data and the identifier, and upon acquisition, associates the objective measurement data with the identifier and stores them in the database 72.

By carrying out the above-mentioned processing, the objective measurement data and the front glasses data are associated with the identifier issued for each subject and stored in the database 72.

Next, subjective measurement is performed. For example, in this embodiment, before starting subjective measurement of the optical characteristics of the test eye by the first subjective eye examination device 1, the objective measurement device 50 and/or the lens characteristic measurement device 60 are used to set initial values of the correction optical system 11 for subjectively measuring the optical characteristics of the test eye based on at least one of the objective measurement data and the previous glasses data.

For example, in the first subjective eye examination device 1, when starting measurement, the examiner or subject holds the identifier over the reading device 30 to have the identifier read. For example, the control unit 31 of the reading device 30 outputs (transmits) the read identifier information to the control unit 21 of the information processing device 20. For example, when the control unit 21 receives the identifier information, it connects to the database 72 via the control unit 71 of the control device 70. Based on the identifier, the control unit 21 obtains the objective measurement data and front glasses data corresponding to the identifier from the database 72. In other words, data is obtained from the database 72 via the information processing device 20 connected to the reading device 30 that read the identifier.

For example, when data is acquired from the database 72, the control unit 21 displays a selection screen on the display unit 24 to select which data to base the initial value on. For example, when the subject or examiner operates the operation unit 23 to select either the objective measurement data or the front glasses data, the initial value is set based on the selected data. Note that in this embodiment, the initial value is set based on the selected data, and an identifier may be set in the first subjective eye examination device 1 as the subject's ID. Note that in this embodiment, a case where objective measurement data is selected will be described as an example.

For example, the control unit 21 sets the acquired objective measurement data as the initial value of the correction optical system 11. For example, in this embodiment, the optical characteristic used for setting the initial value is described using ocular refractive power (e.g., spherical power, cylindrical power, and cylindrical axis angle). Note that in this embodiment, the optical characteristic used for setting the initial value is described using ocular refractive power as an example, but is not limited to this. For example, the optical characteristic used for setting the initial value may be a different optical characteristic. Also, for example, at least one of spherical power, cylindrical power, and cylindrical axis angle may be used as the ocular refractive power used for setting the initial value.

For example, the control unit 21 drives the drive unit 12 based on the objective measurement data, controls the drive of the correction optical system 11, and sets the initial value. In this embodiment, for example, the correction optical system 11 is controlled to correct the refractive error of the test eye based on the ocular refractive power, which is the objective measurement data of the test eye. For example, when the correction optical system 11 is controlled and the setting of the initial value is completed, the subjective measurement is started. In the subjective measurement, the correction power of the correction optical system 11 is changed and the subjective optical characteristics of the test eye are obtained. In other words, the subjective measurement is performed from the state where the setting of the initial value is completed. For example, when the subjective measurement is completed, the control unit 21 associates the subjective measurement data acquired by the subjective measurement with an identifier and stores it together with the identifier in the database 72.

As described above, for example, the subjective optometry system in this embodiment includes a plurality of subjective optometry devices used to subjectively measure the optical characteristics of the subject's eye, each of which has a corrective optical system that changes the optical characteristics of the target light beam presented to the subject's eye, an information processing device for operating the subjective optometry device, and a reading device connected to the information processing device, which reads an identifier provided for each subject and outputs information of the read identifier to the information processing device. Also, for example, the subjective optometry system includes a database in which at least one of objective measurement data and front glasses data is associated and stored for each identifier. Also, for example, the information processing device in the subjective optometry system obtains at least one of the objective measurement data and front glasses data corresponding to the identifier from the database based on the identifier received from the reading device, and sets an initial value of the corrective optical system when subjectively measuring the optical characteristics of the subject's eye based on at least one of the objective measurement data and front glasses data. In this way, for example, in the subjective optometry system, the reading device is connected to the information processing device of each subjective optometry device, and the identifier information read by the reading device is output to the connected information processing device, and the information processing device that receives the identifier information acquires the data corresponding to the identifier, so that the information processing device of the subjective optometry device that is requesting the data corresponding to the identifier can be easily identified. In other words, since the subjective optometry system is connected to the database via the information processing device connected to the reading device that reads the identifier, the information processing device of the subjective optometry device that is requesting the data corresponding to the identifier can be easily identified. Therefore, in a subjective optometry system in which multiple subjective optometry devices can be connected to a database, when at least one of objective measurement data and front glasses data is acquired from the database, it is possible to prevent the information processing device of the subjective optometry device that is requesting the data from becoming unclear. In other words, even in a subjective optometry system in which multiple information processing devices of subjective optometry devices can be connected, it is easy to know which subjective optometry device should be initially set (initial value setting) for the process of the identifier read by the reading device.

In addition, for example, by associating information about the subject with an identifier and managing it all together, various data can be easily acquired based on the identifier, and can be easily set as the initial value of the corrective optical system when subjectively measuring the optical characteristics of the subject's eye. This prevents the subject's information from being entered incorrectly and reduces the trouble the examiner has to go through in entering data, allowing each subjective eye examination device to start subjective measurement accurately and smoothly.

In addition, for example, when the information processing device of the subjective eye examination system in this embodiment receives identifier information, it may automatically obtain at least one of the objective measurement data and the front glasses data corresponding to the identifier from the database, and automatically set the initial value of the correction optical system based on at least one of the objective measurement data and the front glasses data. In this way, for example, when the reading device reads the identifier, data can be obtained quickly and the initial value is set, so that the subject or examiner can easily set up to start subjective measurement without operating the information processing device. In particular, when the subject uses the information processing device to perform the examination himself (performs a self-examination), it is difficult for the subject to understand the state and operation method of the information processing device, and therefore this technology is useful.

For example, the subjective eye examination system in this embodiment includes a data acquisition means for acquiring at least one of objective measurement data and front glasses data, and a database setting means for storing at least one of the objective measurement data and front glasses data acquired by the data acquisition means in a database in association with an identifier. As a result, for example, the identifier and data are appropriately associated and stored in the database for each subject. Therefore, appropriate data is acquired for each subject by reading the identifier.

In the above description, at least one of objective measurement data and front glasses data is used as data corresponding to an identifier, but the present invention is not limited to this. Furthermore, subjective measurement data, which is the past subjective measurement results of the subject undergoing subjective measurement, may be used as the data.

In this case, for example, the database may further store subjective measurement data measured at different dates and times (measured in the past) in association with each identifier. For example, the information processing device may obtain subjective measurement data corresponding to the identifier from the database based on the identifier received from the reading device, and set initial values of the corrective optical system when subjectively measuring the optical characteristics of the test eye based on the subjective measurement data. With this configuration, for example, the subjective measurement data can be used instead of the front glasses data or the objective measurement data, so that the initial values can be set smoothly.

More specifically, for example, an identifier is issued for each subject. For example, in the first subjective optometry device 1, when starting measurement, the examiner or subject holds the identifier over the reading device 30 to read the identifier. Thereafter, for example, in the first subjective optometry device 1, the optical characteristics of the subject's eye are subjectively measured. When the subjective measurement is completed and the subjective measurement data is acquired, the identifier read by the reading device 30 is transmitted to the control unit 71 of the control device 70 together with the subjective measurement data. For example, the control unit 71 receives the subjective measurement data and the identifier, and when acquired, associates the subjective measurement data with the identifier and stores them in the database 72. By performing the above-mentioned processing, the subjective measurement data is associated with the identifier issued for each subject and stored in the database 72. Note that a subjective optometry device other than the first subjective optometry device 1 may be used as the subjective optometry device.

Next, for example, when subjective measurement of the subject is performed again on a different day, the examiner or subject has the identifier issued for each subject read by the reading device 30. For example, in the first subjective eye examination device 1, when starting measurement, the examiner or subject holds the identifier over the reading device 30 to have the identifier read. For example, the control unit 31 of the reading device 30 outputs (transmits) information on the read identifier to the control unit 21 of the information processing device 20. For example, when the control unit 21 receives the identifier information, it connects to the database 72 via the control unit 71 of the control device 70. The control unit 21 obtains subjective measurement data corresponding to the identifier from the database 72 based on the identifier.

For example, when subjective measurement data is acquired from the database 72, the control unit 21 sets the acquired subjective measurement data as the initial value of the correction optical system 11. Note that, for example, when subjective measurement data is acquired together with at least one of objective measurement data and front glasses data, the subjective measurement data may be preferentially set as the initial value. Of course, different data may be preferentially set as the initial value. The data used to set the initial value may be selected by the examiner after data acquisition, or may be set in advance. Of course, the initial value may be set using multiple data (for example, using the average value of multiple data).

In the above, a configuration in which subjective measurement data can be used as data corresponding to an identifier in addition to at least one of objective measurement data and front glasses data has been described as an example, but the present invention is not limited to this. At least one of objective measurement data, front glasses data, and subjective measurement data may be used as data corresponding to an identifier. For example, when subjective measurement of a subject is performed again on a different day, the examiner or subject has the identifier issued for each subject read by the reading device 30. For example, in the first subjective eye examination device 1, when starting measurement, the examiner or subject holds the identifier over the reading device 30 to read the identifier. For example, the control unit 31 of the reading device 30 outputs (transmits) the information of the read identifier to the control unit 21 of the information processing device 20. For example, when the control unit 21 receives the identifier information, it connects to the database 72 via the control unit 71 of the control device 70. Based on the identifier, the control unit 21 acquires from the database 72 at least one of the objective measurement data, front glasses data, and subjective measurement data corresponding to the identifier.

For example, when at least one of the objective measurement data, the front glasses data, and the subjective measurement data is acquired from the database 72, the control unit 21 displays a selection screen on the display unit 24 for selecting which data to base the initial value on. For example, when the subject or examiner operates the operation unit 23 to select one of the objective measurement data, the front glasses data, and the subjective measurement data, the initial value is set based on the selected data.

In this embodiment, the subjective optometry system 100 in which the database 72 is provided in the control device 70 is described as an example, but the present invention is not limited to this. Any component can be set as the database. Setting of the database will be described below. In this embodiment, the case where the database is set using the operation unit 73 of the control device 70 is described as an example. Of course, any configuration can be used for setting the database.

For example, FIG. 3 is a diagram showing a database setting screen. For example, the constructor of the subjective optometry system operates the operation unit 73 to select the database setting screen. For example, the control unit 71 displays a database setting screen as shown in FIG. 3 on the display screen of the operation unit 73. As shown in FIG. 3, the database setting screen displays a list of components (component names) that can be used as a database among the devices (e.g., the first subjective optometry device 1, the second subjective optometry device 1A, the third subjective optometry device 1B, the control device 70, etc.) that construct the subjective optometry system 100. For example, the constructor selects a storage means to be set as a database from the list. For example, when the constructor operates the operation unit 73 to select a storage means to be set as a database, the control unit 71 sets the selected storage means as a database.

For example, FIG. 4 is a block diagram showing the schematic configuration of a modified example of a subjective eye examination system. For example, FIG. 4 is a block diagram explaining a case where the storage means 22 of the information processing device 20 is set as a database. Note that in the subjective eye examination system 100 of FIG. 2 in this embodiment, an example is given in which the dedicated storage means 74 of the control device 70 in FIG. 4 is set as a database.

As shown in FIG. 4, the storage means 22 of the information processing device 20 is set as a database, and each subjective eye examination device (e.g., the second subjective eye examination device 1A, the third subjective eye examination device 1B, etc.), the objective measurement device 50, and the lens characteristic measurement device 60 are connected to the information processing device 20 (more specifically, the control unit 21 of the information processing device 20). With this configuration, for example, a separate dedicated configuration (e.g., a dedicated storage means 74, etc.) for providing a database is not required, and a subjective eye examination system can be constructed with a simple configuration.

For example, the relay unit 19 of the first subjective eye examination device 1 may be used as a database. In this case, for example, each subjective eye examination device (for example, the second subjective eye examination device 1A, the third subjective eye examination device 1B, etc.) is connected to the relay unit 19. With this configuration, for example, the relay unit also serves as a storage means, so that data corresponding to an identifier can be easily obtained even when various types of information processing devices different for each subjective eye examination device are used.

As described above, for example, in the subjective optometry system of this modified example, each of the multiple subjective optometry devices has a storage means, and the storage means is a dedicated storage means different from the storage means, which is dedicated for setting the database, and the storage means is equipped with a selection means for selectively setting the storage means to be used as the database. With such a configuration, for example, when setting a database, it is possible to change the configuration in which the database is set according to the location where the multiple subjective optometry devices are installed, and it is possible to build a subjective optometry system appropriate for the examiner's purpose. As an example, in the case of a subjective optometry system in which multiple subjective optometry devices are installed in a common building (e.g., a store, a hospital, etc.) (e.g., common building cooperation), by setting the database in the storage means of the subjective optometry devices, a separate dedicated configuration for setting the database is not required, and a subjective optometry system can be built with a simple configuration. As another example, in the case of a subjective eye examination system in which multiple subjective eye examination devices are located in different buildings (e.g., a distant store, a distant hospital, etc.) (e.g., collaboration outside a common building), by setting the database in a dedicated storage means provided exclusively for the database, it becomes possible to smoothly acquire data without placing a load on the storage means of a specific subjective eye examination device.

In this embodiment, for example, the subjective optometry system may be equipped with a remote information processing device that can operate the subjective optometry device from a remote access destination. FIG. 5 is a block diagram showing a schematic configuration of a subjective optometry system having a remote information processing device. The subjective optometry system having a remote information processing device will be described below.

For example, the remote information processing device 80 is disposed at a remote access destination (for example, a remote location, etc.). For example, the remote information processing device 80 includes a control unit 81, a storage means (memory) 82, an operation unit 83, and a display unit (display) 84. For example, the control unit 81 is responsible for controlling the remote information processing device 80. The storage means 82 can store programs and various data, etc. For example, the operation unit 83 may use at least one user interface such as a touch panel, a mouse, a joystick, a keyboard, etc. For example, the information processing device 80 is connected in a communicable state to the first subjective optometry device 1 (specifically, the control unit 21 of the first subjective optometry device 1).

In this embodiment, for example, the remote information processing device 80 is capable of remotely accessing the information processing device 20. For example, the remote information processing device 80 is capable of operating at least one of the multiple subjective optometry devices via the information processing device 20. For example, in this embodiment, the remote information processing device 80 is configured to operate the information processing device 20 of the first subjective optometry device 1 to set the initial values of the correction optical system 11.

A more detailed explanation will be given. In the following explanation, an example will be given in which objective measurement data and front glasses data are acquired as data acquired from a database. For example, in the first subjective eye examination device 1, when starting a measurement, the examiner or subject holds an identifier over the reading device 30 to have the identifier read. For example, the control unit 31 of the reading device 30 outputs (transmits) information on the read identifier to the control unit 21 of the information processing device 20. For example, when the control unit 21 receives the identifier information, it connects to the database 72 via the control unit 71 of the control device 70. Based on the identifier, the control unit 21 acquires the objective measurement data and front glasses data corresponding to the identifier from the database 72.

For example, when data is acquired from the database 72, the control unit 21 outputs (transmits) the data to the remote information processing device 80 (more specifically, the control unit 81). For example, the control unit 81 receives the objective measurement data and the front glasses data output from the control unit 21. For example, the control unit 81 causes the display unit 84 to display the received objective measurement data and the front glasses data. For example, the control unit 81 displays a selection screen on the display unit 84 to select whether the objective measurement data or the front glasses data is to be used to set the initial values.

For example, when the examiner operates the operation unit 83 and selects either the objective measurement data or the front glasses data, the initial value is set based on the selected data. Note that in this embodiment, the case where the objective measurement data is selected will be described as an example.

For example, when the examiner operates the operation unit 83 and selects objective measurement data, the control unit 81 outputs an instruction signal to the information processing device 20 (specifically, the control unit 21) to set the objective measurement data as an initial value. For example, the control unit 21 receives an instruction signal from the control unit 81. For example, when the control unit 21 receives an instruction signal, it sets the acquired objective measurement data as the initial value of the correction optical system 11. With this configuration, for example, it is possible to provide data to a remote information processing device that is remotely accessed by the information processing device of the subjective optometry device requesting data corresponding to the identifier. This makes it possible for the examiner to check the subject's data even when operating the subjective optometry device from a remote access destination (for example, a remote location, etc.), and makes it possible to set appropriate initial values for the subjective optometry device that should be initialized.

In the above configuration, a subjective optometry system using a remote information processing device is described using an example of a configuration having multiple subjective optometry devices, but this is not limited to this. A subjective optometry system using a remote information processing device may also have at least one subjective optometry device.

<Alert output control>
For example, in this embodiment, an alert may be output to support the setting of the initial value in the subjective optometry system. The alert output will be described below. In this embodiment, the alert output will be described using the subjective optometry system having the remote information processing device in FIG. 5 as an example. Of course, the present technology can also be applied to other subjective optometry systems (e.g., FIG. 2, FIG. 4, etc.).

For example, in this embodiment, a configuration in which an alert output means is provided in the information processing device 20 will be described as an example. Of course, the alert output means can be provided in any device as appropriate. For example, in this embodiment, the control unit 21 in the information processing device 20 is used as the alert output means. Also, for example, in the following description, a case in which objective measurement data is acquired as data acquired from a database will be described as an example. Of course, the present technology can also be applied in cases in which front glasses data is acquired. Also, for example, in the following description, a configuration in which a reading device 30 is used as an identifier acquisition means will be described as an example.

For example, in the first subjective eye examination device 1, when starting measurement, the examiner or subject holds the identifier over the reading device 30 to have the identifier read. For example, the control unit 31 of the reading device 30 outputs (transmits) the read identifier information to the control unit 21 of the information processing device 20. For example, when the control unit 21 receives the identifier information, it connects to the database 72 via the control unit 71 of the control device 70. Based on the identifier, the control unit 21 obtains the objective measurement data corresponding to the identifier from the database 72.

For example, when data is acquired from the database 72, the control unit 21 evaluates (determines) whether or not to output an alert for the acquired objective measurement data. For example, the control unit 21 outputs an alert based on whether or not the objective measurement data satisfies an evaluation criterion. Note that in this embodiment, an example will be described in which the reliability of the objective measurement data is used as the evaluation criterion to evaluate whether or not to output an alert. Of course, different evaluation criteria may be used.

In this embodiment, for example, the control unit 21 outputs an alert based on whether or not the reliability coefficient acquired when the objective measurement data is measured exceeds a set threshold. The reliability coefficient of the objective measurement data is stored in the database 72 together with the objective measurement data, and is acquired together with the objective measurement data when acquiring the objective measurement data from the database 72. That is, for example, the control unit 21 acquires the objective measurement data and the reliability coefficient based on the identifier. For example, the threshold may be set in advance based on an experiment, a simulation, or the like. For example, the threshold may be configured to be arbitrarily set by the examiner.

For example, the reliability coefficient of the objective measurement data can be obtained when the objective measurement data is measured. For example, an example of obtaining the reliability coefficient will be described. In the following description, for example, an objective measurement device for measuring objective measurement data will be described by projecting measurement light onto the fundus of the test eye, extracting the fundus reflected light as a ring image and imaging it on a two-dimensional image sensor, and measuring the eye refractive power of the test eye based on the ring image imaged on the two-dimensional image sensor. For example, the objective measurement device calculates the deviation in the meridian direction between the actual measurement line when the position of the ring image is detected and the approximation curve when the actual measurement line is approximated for each predetermined divided area, and may classify the calculation results for each divided area in stages and output them as the reliability coefficient for each divided area. In addition, after the reliability coefficient for each divided area is calculated as described above, the average reliability coefficient of the reliability coefficients of each divided area is calculated. For example, the objective measurement device outputs the calculated average reliability coefficient as the reliability coefficient of the measured objective measurement data. For details about the reliability coefficient, please refer to JP 2011-115300 A, etc.

For example, the control unit 21 may output an alert when the reliability coefficient acquired when the objective measurement data is measured does not satisfy the set threshold (is lower than the threshold). As an example, if the reliability coefficient acquired when the objective measurement data is measured is 5 and the threshold is 6, the control unit 21 outputs an alert because the reliability coefficient acquired when the objective measurement data is measured does not satisfy the set threshold. In this embodiment, the control unit 21 outputs an alert to the remote information processing device 80 together with the objective measurement data. When an evaluation is made not to output an alert, the control unit 21 outputs only the objective measurement data to the remote information processing device 80.

For example, the alert (warning) may be an alert indicating that the acquired data (in this embodiment, the objective measurement data) may not be suitable for setting as the initial value of the corrective optical system 11. For example, the alert may be configured to be output using at least one of text, color, sound, light, etc. Of course, the alert may be configured to be output in a way that can prompt the subject or examiner to confirm that the acquired data may not be suitable for setting as the initial value of the corrective optical system 11.

For example, when an alert is output from the control unit 21, the control unit 81 receives the objective measurement data and the alert output from the control unit 21. For example, the control unit 81 causes the display unit 84 to output (display) the received objective measurement data and alert. Note that in this embodiment, an example is given of a configuration in which the alert is displayed on the display unit 84 of the remote information processing device 80, but the alert may be output (displayed) on the display unit 24 of the information processing device 20 without being output from the information processing device 20 to the remote information processing device 80. In this case, for example, the control unit 21 causes the display unit 24 to display the objective measurement data and the alert.

The display screen on which the alert is displayed will be described below. For example, FIG. 6 is a diagram showing an example of a case where an alert is displayed on the display unit. In this embodiment, a case where the alert is displayed in text will be described as an example. As shown in FIG. 6, for example, the control unit 81 displays the acquired objective measurement data 90 and the alert 95 on the display unit 84. Also, for example, the alert 95 portion is provided with a selection switch (in this embodiment, a YES switch 96 or a NO switch 97) for selecting whether or not to set the acquired objective measurement data 90 as the initial value. In this embodiment, the objective measurement data 90 and the alert 95 are displayed on the display unit 84 as an example, but the present invention is not limited to this. The information and layout displayed on the display unit 84 can be set arbitrarily. For example, the evaluation criterion (e.g., reliability coefficient) when the evaluation for outputting the alert is performed may be displayed on the display unit 84.

For example, when the examiner operates the operation unit 83 and selects the YES switch 96, the control unit 81 outputs an instruction signal to the control unit 21 to set the acquired objective measurement data as an initial value. Next, for example, the control unit 21 receives an instruction signal to set the initial value from the control unit 81. For example, when the control unit 21 receives the instruction signal, it sets the acquired objective measurement data as the initial value of the correction optical system 11.

For example, when the examiner operates the operation unit 83 and selects the NO switch 97, the control unit 81 deletes the acquired objective measurement data. Of course, the acquired state may be maintained without deleting. Next, the control unit 81 displays a display screen on the display unit 84 that prompts the examiner to input an initial value. For example, the examiner may operate the operation unit 83 to set an arbitrary value as the initial value. For example, when the examiner inputs an arbitrary value, the control unit 81 outputs an instruction signal to the control unit 21 to set the input arbitrary value as the initial value. Next, for example, the control unit 21 receives an instruction signal from the control unit 81 to set the arbitrary value as the initial value. For example, when the control unit 21 receives the instruction signal, it sets the input arbitrary value as the initial value of the correction optical system 11. Of course, the input of the arbitrary value may be performed by the information processing device 20. In this case, for example, the subject or the examiner may operate the information processing device 20 to input the arbitrary value.

Note that, for example, the initial value does not have to be a value arbitrarily set by the examiner. For example, the control unit 81 may automatically set a default value (for example, 0, etc.). In this case, for example, the control unit 81 outputs an instruction signal to the control unit 21 to set the default value as the initial value. Next, for example, the control unit 21 receives an instruction signal from the control unit 81 to set the default value as the initial value. For example, upon receiving the instruction signal, the control unit 21 sets the default value as the initial value of the correction optical system 11. Of course, for example, the control unit 81 may send an instruction signal to the control unit 21 not to set the acquired objective measurement data as the initial value, and the control unit 21 may automatically set the default value.

As described above, the subjective eye examination system in this embodiment is a subjective eye examination system used to subjectively measure the optical characteristics of the test eye, and includes a subjective eye examination device having a corrective optical system that changes the optical characteristics of a visual target light beam presented to the test eye, a reading device that reads an identifier provided for each test subject, a database in which at least one of objective measurement data that objectively measures the optical characteristics of the test eye and front-glasses data that measures the optical characteristics of the glasses worn by the test subject is stored in correspondence with each identifier, an information processing device that acquires data including at least one of the objective measurement data and front-glasses data corresponding to the identifier from the database based on the identifier received from the reading device, and sets an initial value of the corrective optical system when subjectively measuring the optical characteristics of the test eye based on the acquired data, and an alert output means that outputs an alert to prompt the user to confirm whether the data may be set as the initial value based on whether the data satisfies the evaluation criteria. With this configuration, for example, when various data are acquired based on the identifier and set as the initial values of the corrective optical system when subjectively measuring the optical characteristics of the subject's eye, an alert is output according to the evaluation criteria, making it possible to check the appropriateness of the initial value setting of the data by referring to the alert, and it becomes possible to set appropriate initial values for the subjective eye examination device. As a result, even if an examiner or subject with little knowledge or experience in eye examination sets the initial values, it is possible to set the initial values appropriately, and it becomes possible to proceed with the eye examination smoothly.

Also, for example, in this embodiment, the data includes at least objective measurement data, the evaluation criteria are evaluation criteria set to evaluate the reliability of the objective measurement data, and the alert output means may output an alert based on whether the reliability satisfies the evaluation criteria. With such a configuration, for example, when measuring the objective measurement data, information regarding the calculated reliability can be used as an evaluation criterion for outputting an alert, making it possible to easily check the accuracy of the objective measurement data, and an alert can be easily output without requiring any additional complex control or configuration.

In addition, in this embodiment, for example, the subjective optometry system may be a remote information processing device connected to an information processing device, and may include a remote information processing device for operating the subjective optometry device via the information processing device by remotely accessing the information processing device, and the information processing device may output the acquired data to the remote information processing device to notify the remote information processing device of the data. In addition, in the subjective optometry system, the alert output means may output an alert to the remote information processing device to confirm whether the data may be set as an initial value based on whether the data satisfies the evaluation criterion. With this configuration, for example, it is possible to provide data to a remote information processing device that is remotely accessed by the information processing device of the subjective optometry device requesting data corresponding to the identifier. In addition, since the alert can be confirmed from the remote destination, it is easy to determine whether the provided data should be set as an initial value. This makes it possible for the examiner to confirm the subject's data and the appropriateness of the initial value setting of the data even when operating the subjective optometry device from a remote access destination (for example, a remote location, etc.). This allows the examiner at the remote location to easily check the status of the data even when setting the initial values, making it possible to properly set the initial values from the remote location and providing good follow-up eye examinations.

1 First subjective optometry device 1A Second subjective optometry device 1B Third subjective optometry device 10 Eye refractive power measurement device 11 Corrective optical system 12 Drive unit 15 Optotype presenting device 16 Optotype presenting unit 17 Drive unit 19 Relay unit 20 Information processing device 21 Control unit 22 Storage means 23 Operation unit 24 Display unit 30 Reading device 31 Control unit 32 Storage means 50 Objective measurement device 60 Lens characteristic measurement device 70 Control device 71 Control unit 72 Database 73 Operation unit 74 Dedicated storage means 80 Remote information processing device 81 Control unit 82 Storage means 83 Operation unit 84 Display unit 90 Objective measurement data 95 Alert 100 Subjective optometry system

Claims (7)

A subjective optometry system used to subjectively measure optical characteristics of a subject's eye, comprising:
a subjective optometry device having a correction optical system for changing optical characteristics of a target light beam presented to the subject's eye;
A database in which at least one of objective measurement data obtained by objectively measuring the optical characteristics of the subject's eye and pre-spectacles data obtained by measuring the optical characteristics of the glasses worn by the subject is stored in association with an identifier provided for each subject;
an information processing device that acquires data including at least one of the objective measurement data and the front glasses data corresponding to the identifier from the database based on the identifier, and sets an initial value of the correction optical system when subjectively measuring the optical characteristics of the subject's eye based on the acquired data;
an alert output means for outputting an alert for prompting the user to confirm whether or not the data may be set as an initial value, based on whether or not the data satisfies an evaluation criterion;
A subjective eye examination system comprising: The subjective optometry system of claim 1,
a remote information processing device connected to the information processing device, the remote information processing device being remotely accessed by the information processing device to operate the subjective optometry device via the information processing device;
The information processing device outputs the acquired data to the remote information processing device, thereby causing the remote information processing device to notify the remote information processing device of the data;
The alert output means outputs an alert to the remote information processing device to prompt the user to confirm whether or not to set the data as an initial value based on whether or not the data satisfies the evaluation criteria. In the subjective optometry system of claim 2,
the remote information processing device outputs an instruction signal for setting an initial value of the correction optical system when subjectively measuring the optical characteristics of the subject's eye;
The information processing device is characterized in that, based on an instruction signal from the remote information processing device, it sets initial values of the corrective optical system based on at least one of the objective measurement data and the front glasses data. In the subjective eye examination system according to any one of claims 1 to 3,
The data includes at least the objective measurement data,
The evaluation criterion is set to evaluate the reliability of the objective measurement data,
The subjective eye examination system, wherein the alert output means outputs the alert based on whether the reliability satisfies the evaluation criterion. In the subjective eye examination system according to any one of claims 1 to 3,
the data includes the objective measurement data and the front eyeglasses data;
The evaluation criterion is set to evaluate difference information between the objective measurement data and the front glasses data,
The subjective eye examination system, wherein the alert output means outputs the alert based on whether the difference information satisfies the evaluation criterion. In the subjective eye examination system according to any one of claims 1 to 3,
The evaluation criterion is set to evaluate at least one of whether the objective measurement data includes objective measurement data of the left and right test eyes and whether the front glasses data includes front glasses data of the left and right front glasses,
The subjective eye examination system, wherein the alert output means outputs the alert based on whether or not the data satisfies the evaluation criterion. A subjective optometry system used to subjectively measure optical characteristics of a subject's eye, comprising:
a subjective optometry device having a correction optical system for changing optical characteristics of a target light beam presented to the subject's eye;
A database in which at least one of objective measurement data obtained by objectively measuring the optical characteristics of the subject's eye and pre-spectacles data obtained by measuring the optical characteristics of the glasses worn by the subject is stored in association with an identifier provided for each subject;
an information processing device that acquires data including at least one of the objective measurement data and the front glasses data corresponding to the identifier from the database based on the identifier, and sets an initial value of the correction optical system when subjectively measuring the optical characteristics of the subject's eye based on the acquired data;
A subjective optometry program executed by a subjective optometry system comprising:
A subjective optometry program, comprising: an alert output step for outputting an alert to prompt a user to confirm whether or not to set the data as an initial value based on whether or not the data satisfies an evaluation criterion.