JP7724672B2 - ophthalmology equipment - Google Patents

Description

The present invention relates to an ophthalmic device.

Conventionally, ophthalmic devices have been known that include a measurement head that performs measurements while observing an image of the anterior eye segment through an optical system, a drive mechanism that drives the measurement head up and down, left and right, and back and forth, and a monitor unit with a touch panel display screen that can display an image of the anterior eye segment (see, for example, Patent Document 1).

JP 2013-78524 A

In conventional devices, the monitor screen has a display area for the anterior eye image, etc., and a display area for operation buttons. The display area for operation buttons has a measurement mode button, an R button, and an L button. The measurement mode button is used to select the R/K measurement mode, the R button is used to select the right eye, and the L button is used to select the left eye. Note that the R/K measurement mode refers to the Refractive index (eyeball refraction)/Kerato (corneal curvature radius) measurement mode.

As such, the measurement mode (R/K measurement mode, etc.) is selected using the measurement mode button on the monitor's display screen, and the measurement item (Ref measurement, Kerato measurement, etc.) is simply selected on the measurement screen; there is no status display unit that shows the measurement status. As a result, the examiner has no choice but to determine the measurement status (measurement mode, measurement items, etc.) set for the subject's eye by looking at the number of measurements for each measurement item displayed on the display screen, which poses the problem of not being able to recognize the measurement status at a glance when looking at the display screen.

The present invention was developed in response to the above-mentioned issues, and aims to provide an ophthalmic device that allows the user to instantly recognize the set measurement status by looking at the display screen once the measurement mode and measurement items to be performed on the subject's eye have been set.

To achieve the above object, the ophthalmologic apparatus of the present invention includes a measurement head, a drive mechanism, a monitor, and a control unit. The measurement head is positioned facing the subject's eye and performs measurements of multiple measurement items while observing an anterior eye image via an optical system. The drive mechanism drives the measurement head up, down, left, right, front, and back relative to the subject's eye. The monitor has a touch panel display screen that has an anterior eye image display area that displays an anterior eye image and an operation button display area that displays operation buttons. The control unit controls each part of the device based on input information including touch operations on the display screen. The monitor has a measurement status display unit that displays the measurement status on the display screen using measurement type items that indicate the measurement mode and the type of measurement item . When the measurement mode and measurement items to be performed on the subject's eye are set and the measurement order is set to standard or arbitrary, the control unit displays the measurement type items in the set measurement order on the measurement status display unit.

In this way, when the measurement mode and measurement items to be performed on the subject's eye are set, the set measurement mode and measurement items are displayed on the measurement status display unit. As a result, when the measurement mode and measurement items to be performed on the subject's eye are set, the set measurement status can be recognized at a glance by looking at the display screen. In addition, when the measurement order is set to standard or arbitrary, the order in which multiple measurement items are measured can be recognized at a glance on the display screen. Accordingly, it is also possible to check if any measurement items have been missed and to understand the required measurement time.

1 is a perspective view showing the appearance of an ophthalmologic apparatus according to a first embodiment as viewed from an examiner's side. 1 is a perspective view showing the appearance of an ophthalmologic apparatus according to a first embodiment as viewed from the patient's side. 1 is a side view showing a measurement situation by a T/P measuring head of a composite measuring head in the ophthalmologic apparatus according to Example 1. FIG. FIG. 2 is a block diagram showing a control system in the ophthalmologic apparatus according to the first embodiment. 10A and 10B are diagrams showing basic display modes displayed on the display screen of a monitor unit. FIG. 10 is a diagram showing a first display example in which measurement type items are arranged in the measurement order, starting with right eye measurement, which is preset as the standard measurement order on the measurement status display unit. FIG. 10 is a diagram showing a second display example in which measurement type items are arranged in the measurement order based on the start of left eye measurement, which is arbitrarily set as the measurement order on the measurement status display unit. FIG. 10 is a diagram showing a display example 3 in which measurement type items are arranged in the measurement status display section in an arbitrarily set measurement order of right eye measurement first and left eye measurement. FIG. 10 is a diagram showing an example 1 of measurement type items in which the display items on the measurement status display section are icons only. FIG. 10 is a diagram showing an example 2 of measurement type items in English characters displayed on the measurement status display unit. FIG. 10 is a diagram showing an example 3 of measurement type items in simplified English characters displayed on the measurement status display unit. FIG. 10 is a diagram showing a first display example when only right eye measurement is set when the display positions of multiple measurement type items on the measurement status display section have been determined. FIG. 10 is a diagram showing a display example 2 when only right eye measurement is set when the display positions of multiple measurement type items on the measurement status display section have not been determined. FIG. 10 is a diagram showing a display example 3 when the display positions of multiple measurement type items on the measurement status display section have not been determined and a full measurement mode in which the measurement order is changed is set. FIG. 10 is a diagram showing a first example of a highly visible display in which the measurement type item currently being measured among the measurement type items is underlined and displayed on the measurement status display unit. FIG. 10 is a diagram showing a highly visible display example 2 in which an item being measured among measurement type items is displayed on the measurement status display unit with its outer frame illuminated. FIG. 10 is a diagram showing a highly visible display example 3 in which an asterisk mark is added to the measurement status display section to indicate that a measurement type item has not been measured the specified number of times. FIG. 10 is a diagram showing a tap operation of a mode button when selecting a measurement mode. FIG. 10 is a diagram showing a first measurement mode selection screen displayed by tapping the mode button. FIG. 10 is a diagram showing the selection state of all measurement items by touch operation on the first measurement mode selection screen. FIG. 10 is a diagram showing a selection state of a right eye measurement item by a touch operation on the first measurement mode selection screen. 10 is a diagram showing the selection state of left/right eye measurement items in the R/K measurement mode by touch operation on the first measurement mode selection screen. FIG. FIG. 10 is a diagram showing a selection state of a right eye measurement item in the R/K measurement mode by a touch operation on the first measurement mode selection screen. FIG. 10 is a diagram showing the display of the start state of right eye keratometry in the skip and return actions of measurement items. FIG. 10 is a diagram showing the skip operation from left eye pachymetry measurement to left eye tonometry measurement in the skip and return action of measurement items. This figure shows the return operation from left eye tonoscopy measurement to left eye pachymetry measurement in the skip and return functions of measurement items. This figure shows the automatic transition to right eye pachymetry measurement when left eye pachymetry measurement is completed during skip and return functions of measurement items. FIG. 10 is a diagram showing a first example of a remeasurement screen when the specified number of measurements has not been reached for some measurement items at the time of measurement completion due to skipping of measurement items. FIG. 10 is a diagram showing a second example of a remeasurement screen when the specified number of measurements has not been reached for some measurement items at the time of measurement completion due to skipping of measurement items. 10A and 10B are diagrams showing basic display modes displayed on a display screen of a monitor unit in an ophthalmologic apparatus according to a second embodiment. FIG. 10 is a diagram showing a second measurement mode selection screen on the display screen of the monitor unit, which is displayed by tapping the mode button. FIG. 10 is an enlarged view showing a second measurement mode selection screen. FIG. 10 is a diagram showing an example of how the R button and the L button are displayed when both the left and right eyes are set as the eyes to be measured. FIG. 10 is a diagram showing an example of how the R button is displayed by the key icon process when the left eye is set as the eye to be measured. FIG. 10 is a diagram showing the measurement status display when setting operation case #1 is selected on the second measurement mode selection screen. FIG. 10 is a diagram showing the measurement status display when setting operation case #2 is selected on the second measurement mode selection screen. FIG. 10 is a diagram showing the measurement status display when setting operation case #3 is selected on the second measurement mode selection screen. FIG. 10 is a diagram showing the measurement status display when setting operation case #4 is selected on the second measurement mode selection screen. FIG. 10 is a diagram showing a transition to a T/P measurement mode that is not selected by a long press operation when the setting operation case #1 is being performed on the second measurement mode selection screen. FIG. 10 is a diagram showing a transition to a T/P measurement mode that is not selected by a long press operation when the setting operation case #2 is being performed on the second measurement mode selection screen.

Below, an embodiment of the ophthalmic device according to the present invention will be described based on Examples 1 and 2 shown in the drawings.

Example 1 is applied to an ophthalmic device 1 that has two measurement heads and combines measurements using two measurement items (REF, KRT) in the R/K measurement mode and measurements using two measurement items (TONO, PACHY) in the T/P measurement mode into a single device.

Here, "REF (abbreviation for Refractometer)" refers to the measurement of spherical refractive power, astigmatic refractive power, and astigmatic axis direction, hereinafter referred to as "REF measurement." "KRT (abbreviation for Keratometer)" refers to the measurement of corneal radius of curvature, corneal principal meridian direction, and corneal refractive power, hereinafter referred to as "keratometry." "TONO (abbreviation for Tonometer)" refers to the measurement of intraocular pressure, hereinafter referred to as "tonometry." "PACHY (abbreviation for Pachymeter)" refers to the measurement of corneal thickness, hereinafter referred to as "pachy measurement."

The ophthalmic device 1 of Example 1 is called an "autokeratorefractometer," and like the ophthalmic device 1 of Example 1, the ophthalmic device of Example 2 is also a device capable of obtaining measurement results for four types of measurement items from one eye. Note that throughout this specification, the X-axis, Y-axis, and Z-axis are defined as shown in each figure, with the left-right direction being the X-axis direction, the front-back direction being the Z-axis direction, and the up-down direction being the Y-axis direction.

First, the overall configuration of the ophthalmic device 1 according to Example 1 will be described with reference to Figures 1 to 5.

The ophthalmic device 1 comprises a device main body 10, a face support unit 20, and a monitor unit 40. The overall system for ophthalmic measurements also includes an optical table 30 on which the ophthalmic device 1 is placed, and a chair 50 on which the subject P sits. Each component is described in detail below.

As shown in Figures 1 to 3, the device main body 10 is placed on the top plate 31 of the optical table 30 and includes a base 11, a composite measurement head 12 (measurement head), and a cover member 13.

An XYZ drive mechanism and drive circuit 16 (drive mechanism) is provided inside the base unit 11 and between it and the composite measuring head 12. A control lever 111, a power switch 112, a power inlet 113, a USB input terminal 114, and a LAN output terminal 115 are provided on the outside of the base unit 11.

The XYZ drive mechanism/drive circuit 16 uses, for example, a stepping motor as a drive actuator, and drives the combined measurement head 12 in the XYZ directions (up/down, left/right, front/back) relative to the subject's eye E. The control lever 111 is an operating lever used when manually driving the combined measurement head 12 in the XYZ directions relative to the subject's eye E during alignment adjustment, etc. The power inlet 113 is used to plug in the power cord. The USB input terminal 114 can be connected to a barcode reader or the like via USB, allowing ID input, etc. The LAN output terminal 115 can be connected to an external device 60 via a connection cord 61, which will be described later.

As shown in FIG. 3, the combined measurement head 12 is positioned within a cover member 13 facing the subject's eye E, and performs measurements of multiple measurement items while observing an anterior ocular image via an optical system. The combined measurement head 12 has a T/P measurement head 12a (first measurement head) and an R/K measurement head 12b (second measurement head). The T/P measurement head 12a is composed of an optical system with an imaging element for an anterior ocular image, and performs tonoscopic and pachyscopic measurements for each of the subject P's left and right eyes. The R/K measurement head 12b is positioned below the T/P measurement head 12a, is composed of an optical system with an imaging element for an anterior ocular image, and performs reflex and keratoscopic measurements for each of the subject P's left and right eyes. Switching between T/P measurement mode and R/K measurement mode is performed by moving the combined measurement head 12 in the Y-axis direction, and switching between the left and right eyes is performed by moving the combined measurement head 12 in the X-axis direction.

The cover member 13 covers the combined measurement head 12. When the subject P side of the device main body 10 is the front side, the T/P measurement window 131 is located on the upper side of the front, and the R/K measurement window 132 is located below the T/P measurement window 131. A wide-angle camera 14 (see Figure 3) is located between the T/P measurement window 131 and the R/K measurement window 132. A printer cover 133 and a printer cover open button 134 are provided on the back side of the cover member 13. Furthermore, a measurement window height mark 135 for the R/K measurement window 132 is set on the side of the cover member 13 facing the subject P.

As shown in Figures 1 to 3, the face support unit 20 is connected and fixed to the front (front face) of the base unit 11 of the device main body unit 10, and functions to support the face of the subject P. The face support unit 20 includes a base unit 21, a chin rest unit 22, a pair of support posts 23, a forehead rest unit 24, a drive mechanism 25, and a chin rest paper stopper pin 28.

The chin rest 22 is movable up and down by a drive mechanism 25 (see Figure 4) relative to a base 21 that is fixedly connected to the base 11. A pair of support posts 23 protrude from both the left and right sides of the base 21, and the upper ends of the pair of support posts 23 are connected in the X-axis direction to form a forehead rest 24. A height mark 27 for the subject's eye E is set on the side of the support posts 23.

For example, as shown in Figure 3, subject P faces the ophthalmic device 1 while seated on the seating surface 51 of an elevating chair 50 placed in front of (in front of) the ophthalmic device 1, places their chin on the chin rest 22, and places their forehead against the forehead rest 24, while undergoing measurements of their eye characteristics. At this time, whether or not subject P's chin is resting is detected by a detection sensor 26 (see Figure 4), which will be described later.

As shown in Figure 3, the optical table 30 includes a top plate 31, a lifting mechanism 32, a table control unit 33, a power button 34, a lifting lever 35, and a caster base 36.

The lifting mechanism 32 raises and lowers the tabletop 31 under the control of the table control unit 33, which will be described later. The lifting mechanism 32 has a lifting rod 32a that supports the tabletop 31, a support rod 32b that supports the lifting rod 32a so that it can move up and down, and a drive unit 32c that moves the lifting rod 32a up and down. The caster base 36 is provided with casters 36a equipped with a locking mechanism.

As shown in Figures 1 to 3, the monitor unit 40 is attached to the top of the rear side of the cover member 13 and has a touch panel display screen 41. The monitor unit 40 includes the display screen 41, a monitor cover member 42, and a monitor support member 43.

The display screen 41 consists of a color LCD display and displays the anterior segment image, operation buttons, measurement status, etc. The monitor cover member 42 is a member that covers the outer periphery and back of the display screen 41, and as shown in Figure 3, the monitor cover member 42 houses control circuit units such as the main control unit 17. The monitor support member 43 is a member that mounts and supports the monitor unit 40 so that it can rotate freely around a horizontal axis (around the X-axis or Z-axis) and a vertical axis (around the Y-axis). This monitor support member 43 allows the display screen 41 of the monitor unit 40 to be positioned at a desired angle and direction depending on the examiner's position, posture, eye level, etc.

Next, the configuration of the control system in the ophthalmologic apparatus 1 according to Example 1 will be described with reference to Figure 4.

As shown in Figure 4, the control system of the ophthalmologic apparatus 1 includes a control system for the apparatus main body 10, a control system for the face support unit 20, and a control system for the optical table 30.

The control system of the device main body 10 includes a main control unit 17 (control unit), internal memory 17a, a storage unit 18, a measurement optical system 15, an XYZ drive mechanism and drive circuit 16, a monitor unit 40, a storage unit 18, an operation unit 19, and a wide-angle camera 14.

The control system for the face support unit 20 includes a drive mechanism 25 and a detection sensor 26. The control system for the optical table 30 includes a table control unit 33, an internal memory 33a, a lift lever 35, a power button 34, and a lift mechanism 32.

The main control unit 17 expands the programs stored in the storage unit 18 or internal memory 17a, for example, onto RAM, and performs overall control of each unit, including display control and operation control, of the ophthalmologic apparatus 1 in response to appropriate operation input signals from the operation unit 19. The main control unit 17 is connected to the drive mechanism 25 of the face support unit 20, the table control unit 33 of the optical table 30, and other components. An external device 60, such as a personal computer, is connected to the main control unit 17 via a connection cord 61 to a LAN output terminal 115 provided on the base unit 11 of the device main body 10. This configuration allows for information exchange, such as outputting data from the main control unit 17 to be stored in a database in the external device 60, and retrieving stored data from the database in the external device 60 in response to a request from the main control unit 17.

Operations on the operation unit 19 include touch operations such as tapping or long pressing on the display screen 41. The monitor unit 40 accepts operation inputs to the areas displayed on the display screen 41 and sends operation input signals to the main control unit 17. Operations on the operation unit 19 also include operations on the control lever 111. The wide-angle camera 14 captures a facial image, including both the left and right eyes, of the subject P, who is supported by the face support unit 20, from a single position on an imaging element.

Next, with reference to Figure 5, we will explain the basic display modes displayed on the display screen 41 of the monitor unit 40 from the preparation stage before measurement to the end of measurement.

As shown in Figure 5, the touch panel display screen 41 of the monitor unit 40 has an anterior eye image display area 411 that displays the anterior eye image Gf, an operation button display area 412 that displays operation buttons, and a measurement status display area 413 that displays measurement items.

The anterior eye image display area 411 is a rectangular area that is reduced in the vertical and horizontal directions from the overall area of the display screen 41. The anterior eye image display area 411 displays an anterior eye image Gf having a corneal bright spot image P1 as a measurement screen, and also displays a target area mark 40e and a minimum pupil diameter determination mark 40f at the center of the anterior eye image display area 411 as alignment marks.

In addition to the anterior eye image Gf, the anterior eye image display area 411 also displays the measurement results and number of measurements for each measurement item for each left and right eye. For example, when measuring using the R/K measurement mode, two measurement items, the reflex measurement result, the number of reflex measurements, the keratomileusis measurement result, and the number of keratomileusis measurements, are displayed for each left and right eye. In addition, the anterior eye image display area 411 also displays the corneal vertex distance VD.

The operation button display area 412 is a strip-shaped area defined by the top, left, and right sides of the four outer periphery of the entire area of the display screen 41 excluding the anterior eye image display area 411.

The upper edge of the operation button display area 412 is equipped with a mode button 1B, an RK mode display/setting button 2B, a TP mode display/setting button 3B, a subject ID button 4B, and an examiner ID button 5B.

Mode button 1B is located in the center of the top edge of the operation button display area 412, and when tapped, displays the first measurement mode selection screen 71, which will be described later. RK mode display/setting button 2B and TP mode display/setting button 3B are located to the left and right of mode button 1B. RK mode display/setting button 2B displays R/K measurement mode and switches to R/K measurement mode when the button is touched. TP mode display/setting button 3B displays T/P measurement mode and switches to T/P measurement mode when the button is touched. Mode button 1B, RK mode display/setting button 2B, and TP mode display/setting button 3B form a triple mode button.

The subject ID button 4B is located to the left of the RK mode display/setting button 2B; tap it to enter the subject ID. The examiner ID button 5B is located to the right of the TP mode display/setting button 3B; tap it to enter the examiner ID.

On the left side of the operation button display area 412, from top to bottom, are arranged the R button 6B, the clear all measurement values button 7B, the display all data button 8B, the end button 9B, the air check button 10B, the alignment stop button 11B, the chin rest up/down movement button 12B, and the print button 13B.

Tapping the R button 6B selects the right eye. Tapping the Clear All Measurements button 7B clears all measurement data. Tapping the Display All Data button 8B displays all measurement data. Tapping the End button 9B moves the chin rest 22 and combined measuring head 12 to the end position. Tapping the Air Check button 10B performs an air check. The Alignment Stop button 11B is displayed during measurement and stops alignment or measurement when tapped. Tapping the Chin Rest Up/Down Movement button 12B moves the chin rest 22 up and down. Tapping the Print button 13B prints out the measurement results.

On the right side of the operation button display area 412, from top to bottom, are arranged the L button 14B, setup button 15B, cataract button 16B, corneal diameter button 17B, FOG button 18B, fixation target button 19B, start button 20B, measurement head forward/backward button 21B, and auto/manual button 22B.

Tapping the L button 14B selects the left eye. Tapping the setup button 15B opens the setup screen. Tapping the cataract button 16B is used when measurement cannot be performed normally due to cataracts, eyelids, eyelashes, blinking, etc. Tapping the corneal diameter button 17B switches to corneal diameter measurement mode. Tapping the FOG button 18B switches between FOG mode for the first measurement only or for each measurement during continuous measurement. Tapping the fixation target button 19B changes the brightness of the fixation target. Tapping the start button 20B starts measurement. Tapping the measurement head advance/retract button 21B moves the combined measurement head 12 toward/away from the subject's eye E. Tapping the auto/manual button 22B switches between auto mode and manual mode for ophthalmic measurement.

The measurement status display section 413 is located at the bottom of the operation button display area 412 and displays the measurement status using combination icons as measurement type items. The combination icons use a combination of the letter R, which represents the right eye, and an icon representing each measurement item, and a combination of the letter L, which represents the left eye, and an icon representing each measurement item. The measurement status display displays eight combination icons arranged in order from left to right. The eight combination icons are: right eye keratomileusis measurement icon Ia, right eye reflex measurement icon Ib, left eye keratomileusis measurement icon Ic, left eye reflex measurement icon Id, left eye pachymetry measurement icon Ie, left eye tonometry measurement icon If, right eye pachymetry measurement icon Ig, and right eye tonometry icon Ih. The arrangement of these eight combination icons matches the standard measurement order of each measurement item when performing continuous measurements using all measurement items.

When the measurement mode and measurement items to be performed on the subject's eye E are set, the main control unit 17 displays the set measurement mode and measurement items on the measurement status display unit 413. The display on the measurement status display unit 413 shows combination icons (an example of measurement type items) arranged in a predetermined measurement order.

Here, in the case of Example 1, as shown in FIG. 6A, the combination icons are arranged in the measurement status display unit 413 in the measurement order starting with the right eye measurement, which is preset as the standard measurement order (Display Example 1). However, the measurement order may be set arbitrarily, and in this case, the display may be, for example, as shown in FIG. 6B (Display Example 2) or FIG. 6C (Display Example 3), etc., according to the arbitrarily set measurement order.

In the case of display example 2, as shown in Figure 6B, the combination icons are arranged in the measurement order in the measurement status display section 413, starting with the left eye measurement start, which is arbitrarily set as the measurement order. That is, from left to right, they are: left eye keratomileusis measurement icon Ic, left eye reflex measurement icon Id, right eye keratomileusis measurement icon Ia, right eye reflex measurement icon Ib, right eye pachymetry measurement icon Ig, right eye tonomileusis measurement icon Ih, left eye pachymetry measurement icon Ie, and left eye tonomileusis measurement icon If.

In the case of display example 3, as shown in Figure 6C, the combination icons are arranged in the measurement status display section 413 in the arbitrarily set measurement order of right eye measurement → left eye measurement. That is, from left to right, they are: right eye keratomileusis measurement icon Ia, right eye reflex measurement icon Ib, right eye pachymetry measurement icon Ig, right eye tonomileusis measurement icon Ih, left eye keratomileusis measurement icon Ic, left eye reflex measurement icon Id, left eye pachymetry measurement icon Ie, and left eye tonomileusis measurement icon If.

In the case of Example 1, as shown in Figures 5 and 6, an example of a "combination icon" is shown as the measurement type item displayed in the measurement status display unit 413. However, the measurement type item is not limited to a "combination icon", and for example, Figure 7A (measurement type item example 1), Figure 7B (measurement type item example 2), Figure 7C (measurement type item example 3), etc. may also be used.

In the case of measurement type item example 1, as shown in Figure 7A, only icons are used as measurement type items in the measurement status display section 413. That is, a kerato measurement icon Ik, a reflex measurement icon Ir, a Pachy measurement icon Ip, and a Tono measurement icon It are used.

In the case of measurement type item example 2, as shown in Figure 7B, the measurement type items displayed on the measurement status display unit 413 are the letters R-KRT, R-REF, L-KRT, L-REF, L-PACH, L-TONO, R-PACH, and R-TONO. That is, from left to right, they are the letters Ia' for right eye keratomileusis measurement, Ib' for right eye reflex measurement, Ic' for left eye keratomileusis measurement, and Id' for left eye reflex measurement. Then they are the letters Ie' for left eye pachymetry measurement, If' for left eye tonomileusis measurement, Ig' for right eye pachymetry measurement, and Ih' for right eye tonomileusis measurement.

In the case of measurement type item example 3, as shown in Figure 7C, simplified English letters R-K, R-R, L-K, L-R, L-P, L-T, R-P, and R-T are used as measurement type items in the measurement status display unit 413. That is, from left to right, they are simplified English letters Ia" for right eye keratomileusis measurement, simplified English letters Ib" for right eye reflex measurement, simplified English letters Ic" for left eye keratomileusis measurement, and simplified English letters Id" for left eye reflex measurement. Then they are simplified English letters Ie" for left eye pachymetry measurement, simplified English letters If" for left eye tonomileusis measurement, simplified English letters Ig" for right eye pachymetry measurement, and simplified English letters Ih" for right eye tonomileusis measurement.

In Example 1, the display positions of the eight measurement icons displayed on the measurement status display unit 413 are fixed, and when all measurement items are set, all eight measurement icons are lit and displayed, as shown in Figure 5.

In contrast, the display positions of the eight measurement type items displayed on the measurement status display unit 413 are fixed, and for example, when only the measurement items for the right eye are set, the display shown in Figure 8A (Display Example 1) is displayed. That is, the right eye keratomileusis measurement icon Ia, right eye reflex measurement icon Ib, right eye pachymetry measurement icon Ig, and right eye tonomileusis measurement icon Ih are displayed lit. The left eye keratomileusis measurement icon Ic, left eye reflex measurement icon Id, left eye pachymetry measurement icon Ie, and left eye tonomileusis measurement icon If are turned off and are in a blackout state.

On the other hand, if the display positions of the eight measurement type items displayed in the measurement status display section 413 have not been determined and, for example, only the measurement items for the right eye are set, the display will be as shown in Figure 8B (display example 2). That is, the right eye keratomileusis measurement icon Ia, right eye reflex measurement icon Ib, right eye pachymetry measurement icon Ig, and right eye tonometry measurement icon Ih will be displayed lit on the left side of the drawing. The rest of the screen will be turned off and blacked out.

Furthermore, if the display positions of the eight measurement type items displayed in the measurement status display section 413 are not fixed and, for example, full measurement mode is set in an arbitrarily set measurement order, the display shown in Figure 8C (display example 3) will be displayed. That is, all eight measurement icons arranged in order from left to right in accordance with the arbitrarily set measurement order (see Figure 6B) will be lit.

When measurement of the subject's eye E begins, the main control unit 17 displays the measurement type items currently being measured among the measurement type items representing multiple measurement items arranged in measurement order, with a high visibility display that is higher than that of measurement type items not currently being measured.

In the case of high visibility display example 1, the underline of the measurement item currently being measured is displayed in a lit state, making it more visible than measurement items that are not currently being measured. For example, when right eye keratometry measurement is in progress, the underline of the right eye keratometry measurement icon Ia is displayed in a lit state, as shown in Figure 9A.

In the case of high visibility display example 2, the outer frame surrounding the measurement item in progress is lit, making the display more visible than measurement items that are not currently being measured. For example, when right eye keratometry measurement is in progress, the outer frame surrounding the right eye keratometry measurement icon Ia is lit, as shown in Figure 9B.

In the case of high visibility display example 3, the underline of the measurement type item currently being measured is displayed in a lit state, making it more visible than measurement type items that are not currently being measured, and an asterisk is added to indicate that the specified number of measurements has not been made. For example, if right eye keratometry measurement is in progress but the specified number of right eye keratometry measurements has not been made, the underline and asterisk of the right eye keratometry measurement icon Ia are displayed in a lit state, as shown in Figure 9C.

Note that the highly visible display of measurement type items currently being measured is not limited to the display examples in Figures 9A, 9B, and 9C. For example, the measurement type item currently being measured (e.g., an icon) may be displayed larger, while other measurement type items may be displayed smaller. The color of the measurement type item currently being measured may also be made different from the color of the other measurement type items. The measurement type item currently being measured may also be displayed as a flashing display, while other measurement type items may be displayed as a lit display. The underline of the measurement type item currently being measured may also be an arrow or the like indicating that measurement is in progress, while other measurement type items remain underlined.

Next, the setting of the measurement mode, measurement items, and eye to be measured by touch operation on the ophthalmologic apparatus 1 according to Example 1 will be described with reference to Figures 10 to 12.

After turning on the power switch 112, tap the mode button 1B located in the center of the top edge of the operation button display area 412, as shown in Figure 10. This tap operation displays the first measurement mode selection screen 71 (Figure 11), which displays the measurement mode and measurement items all at once, superimposed on the anterior eye image display area 411 of the display screen 41.

As shown in FIG. 11, the first measurement mode selection screen 71 has right eye individual selection buttons: a right eye reflex measurement button 81RB, a right eye keratoconstriction measurement button 82RB, a right eye tonoconstriction measurement button 83RB, and a right eye pachymetry measurement button 84RB. Left eye individual selection buttons: a left eye reflex measurement button 81LB, a left eye keratoconstriction measurement button 82LB, a left eye tonoconstriction measurement button 83LB, and a left eye pachymetry measurement button 84LB. Left and right eye region setting buttons: a right eye setting button 85RB and a left eye setting button 85LB. Measurement mode region setting buttons: an all measurement mode setting button 86AB, an R/K measurement mode setting button 86KB, and a T/P measurement mode setting button 86PB. Other buttons include a set button 87B, a clear button 88B, and a close screen button 89B.

To select all measurement items by touching the first measurement mode selection screen 71, press the all measurement mode setting button 86AB. This touch operation causes all measurement buttons and setting buttons, including the all measurement mode setting button 86AB, to be displayed with illuminated frames, as shown in Figure 12A, and all measurement items are selected.

When selecting a right eye measurement item by touching the first measurement mode selection screen 71, press the right eye setting button 85RB. This touch operation causes the measurement items in the right eye measurement mode, including the right eye setting button 85RB, to be displayed with a lit circle, as shown in FIG. 12B, and the right eye measurement item area is selected. Note that when selecting a left eye measurement item by touching the first measurement mode selection screen 71, pressing the left eye setting button 85LB similarly selects the left eye measurement item area.

When selecting the R/K measurement mode for the left and right eyes by touching the first measurement mode selection screen 71, press the R/K measurement mode setting button 86KB. This touch operation causes the measurement items in the R/K measurement mode for the left and right eyes, including the R/K measurement mode setting button 86KB, to be displayed with a circular frame lit, as shown in FIG. 12C, and the R/K measurement mode area is selected. When selecting the T/P measurement mode for the left and right eyes by touching the first measurement mode selection screen 71, press the T/P measurement mode setting button 86PB, and the T/P measurement mode area is similarly selected.

When selecting the R/K measurement mode for the right eye by touching the first measurement mode selection screen 71, press the R/K measurement mode setting button 86KB to select the R/K measurement mode for both the left and right eyes. Next, when the left eye setting button 85LB is pressed, this touch operation blacks out and deletes the measurement items for the left eye. As shown in FIG. 12D, the remaining measurement items are displayed with a lit circle, and the R/K measurement mode area for the right eye is selected. Note that when selecting the R/K measurement mode for the left eye by tapping the first measurement mode selection screen 71, press the right eye setting button 85RB. Furthermore, when selecting the T/P measurement mode for one of the left or right eyes, the area can be set by a similar touch operation.

When you have confirmed the settings for individual measurement items or area measurements using the above touch operations, press the set button 87B to confirm the settings. If you want to cancel or change the settings, press the clear button 88B to clear the current settings. Furthermore, when you have finished setting the individual measurement items or area measurements, press the close screen button 89B to close the first measurement mode selection screen 71.

As described above, in the ophthalmologic apparatus 1 according to Example 1, the measurement mode, measurement items, and measurement eye can be freely set as desired by touching the first measurement mode selection screen 71, which is displayed by tapping the mode button 1B.

Here, we have explained how to set the measurement mode, measurement items, and eye to be measured by touching the first measurement mode selection screen 71. However, the measurement mode, measurement items, and eye to be measured can also be set in conjunction with a database. In this case, when the ophthalmic measurement is completed, the setting history for the measurement mode, measurement items, and eye to be measured is stored as a data list linked to a specific subject P in the database of the external device 60 or the database of the memory unit 18 in the device main body 10. When a specific subject P undergoes ophthalmic measurement for a follow-up visit, the database is called up and the specific subject P for the follow-up visit is selected from the displayed data list. By reading the information about the subject P saved by selecting this subject P, it is possible to set the subject P's ID, measurement mode, measurement items, and eye to be measured all at once.

Next, referring to Figures 13 and 14, the skip, return, and reset functions for measurement items will be explained.

For example, of the four measurement items - refractometry, keratomileusis measurement, tonometry, and pachymetry - pachymetry requires the strictest alignment accuracy, and when performing continuous measurements, the left eye pachymetry measurement may take a long time to complete. In such cases, the measurement item skip function, return function, and reset function are useful.

When continuous measurements start, as shown in Figure 13A, they begin with right eye keratometry, and measurements of each measurement item are performed consecutively in measurement order. If, during the left eye reflex measurement, which is the measurement item preceding left eye pachy measurement, you want to skip to the left eye tono measurement scheduled to be performed after the left eye pachy measurement, tap the left eye tono measurement icon If, as shown in Figure 13B. This tap operation skips over the left eye pachy measurement and skips to the left eye tono measurement destination, where the left eye tono measurement begins. Note that if you have progressed to the left eye pachy measurement but the measurement is taking a long time to complete, tapping the left eye tono measurement icon If will interrupt the ongoing left eye pachy measurement, and the left eye tono measurement will begin immediately after the interruption of the left eye pachy measurement.

When the left eye tono measurement begins, for example, before switching to the next right eye pachy measurement begins, tap the left eye pachy measurement icon Ie for the left eye pachy measurement that has been interrupted by skip movement, as shown in Figure 13C. This tap operation waits until the ongoing left eye tono measurement is completed, and after the left eye tono measurement is completed, the tapped left eye pachy measurement icon is returned to and the left eye pachy measurement is resumed.

After resuming left eye pachymetry measurement, once the left eye pachymetry measurement is completed, the system automatically moves to the right eye, and as shown in Figure 13D, the measurement item automatically shifts from right eye pachymetry measurement determined in the measurement flow to right eye tonometry measurement.

Here, in Example 1, an example was shown in which the skip function and return function were performed by tapping on the measurement type items displayed side by side on the measurement status display section 413. However, this is not limited to this, and for example, a skip button and a return button may be set on the measurement status display section 413, and the skip function and return function may be performed by tapping on the skip button and return button.

In the above case, the return function is used for the skipped measurement item to prevent missing measurements. However, there are cases where a measurement is continued without using the return function to return to the skipped measurement item. In such cases, measurements are carried out in the order of the measurement items following the measurement of the skipped measurement item, and the measurement of the last measurement item in the measurement order is completed.

In this way, if you do not return to the measurement item that you skipped, the measurement of the skipped measurement item will remain a missing measurement, meaning that no measurement results can be obtained. Therefore, if continuous measurement ends with a missing measurement, a remeasurement screen 75 will be displayed on the display screen 41, as shown in Figure 14A or 14B, allowing you to set the measurement item to be remeasured.

The remeasurement screen 75 has right eye remeasurement buttons: keratomileusis measurement count button 101B, reflex measurement count button 102B, pachymetry measurement count button 103B, and tonomileusis measurement count button 104B. Left eye remeasurement buttons: keratomileusis measurement count button 105B, reflex measurement count button 106B, pachymetry measurement count button 107B, and tonomileusis measurement count button 108B. Other buttons include a remeasurement button 109B and a print button 110B.

Therefore, if there is a measurement item for which the specified number of measurements has not been reached at the end of measurement, a remeasurement screen 75 will be displayed on the display screen 41, as shown in FIG. 14A. For example, if the specified number of measurements is three for all measurement items, and the left eye tono measurement is displayed as "TONO-1/3," tapping the tono measurement count button 108B and pressing the remeasurement button 109B will remeasure the tono measurements that have not reached the specified number of measurements.

In Figure 14B, when displaying measurement items that have not reached the specified number of measurements, an asterisk is added, such as "TONO-1/3*" for the left eye tono measurement. This display makes measurement items that have not reached the specified number of measurements more visible than the display in Figure 14A, allowing measurement items that have not reached the specified number of measurements to be recognized at a glance.

As described above, the ophthalmologic apparatus 1 according to Example 1 provides the following advantages.

(1) The ophthalmic device 1 comprises a composite measurement head 12 (measurement head), an XYZ drive mechanism and drive circuit 16 (drive mechanism), a monitor unit 40, and a main control unit 17 (control unit). The composite measurement head 12 is positioned facing the subject's eye E and performs measurements of multiple measurement items while observing an anterior eye image Gf via an optical system. The XYZ drive mechanism and drive circuit 16 drives the composite measurement head 12 up, down, left, right, front, and back relative to the subject's eye E. The monitor unit 40 has a touch-panel display screen 41 that has an anterior eye image display area 411 that displays the anterior eye image Gf and an operation button display area 412 that displays operation buttons. The main control unit 17 controls each unit of the device based on input information, including touch operations on the display screen 41. The monitor unit 40 has a measurement status display unit 413 that displays the measurement status on the display screen 41. When the measurement mode and measurement items to be performed on the subject's eye E are set, the control unit 17 displays the set measurement mode and measurement items on the measurement status display unit 413.

In other words, once the measurement mode and measurement items to be performed on the subject's eye E are set, the set measurement mode and measurement items are displayed on the measurement status display unit 413. As a result, once the measurement mode and measurement items to be performed on the subject's eye E are set, the set measurement status can be recognized at a glance on the display screen 41.

(2) The measurement status display unit 413 displays the measurement status using measurement type items that indicate the measurement mode and type of measurement item. When the measurement order is set to standard or arbitrary, the main control unit 17 displays the measurement type items in the set measurement order.

In other words, by displaying the measurement status using measurement type items that indicate the measurement mode and type of measurement item, it becomes easier to distinguish between individual measurement types. Furthermore, by displaying the measurement type items in measurement order, the measurement flow can be recognized simply by looking at the measurement status display section 413. Therefore, when the measurement order is set to standard or arbitrary, it is possible to recognize the order in which multiple measurement items are measured at a glance on the display screen 41. This also makes it possible to check for missed measurement items and understand the required measurement time.

(3) When measurement of the subject's eye E is initiated, the main control unit 17 displays the measurement type item currently being measured among the multiple measurement type items displayed in measurement order in a highly visible display that is more visible than the measurement type items that are not currently being measured.

In other words, by displaying multiple measurement items in the order in which they will be measured and identifying the measurement item currently being measured using a highly visible display, the multiple measurement items being measured can be recognized as having been measured, measurement in progress, or items not yet measured. Therefore, during measurement, the measurement progress status of multiple measurement items (measured, measurement in progress, items not yet measured) can be recognized at a glance at the display screen 41. As a result, it is possible to explain to subject P what measurement will be performed next immediately before the measurement, and it is also possible to predict the end time of continuous measurement.

(4) During continuous measurements, when a user wishes to skip to a measurement item scheduled to be performed after a measurement item currently being measured, the main control unit 17 performs a predetermined tap operation, skipping the measurement item and performing the measurement.

In other words, when you want to skip to a later measurement item, performing a specific tap operation provides a skip function that skips the measurement item and performs the measurement. Therefore, during continuous measurements, it is possible to respond to requests to skip to a measurement item that is scheduled to be performed after the measurement item currently being measured.

(5) When a user wishes to return to the measurement of a measurement item that has been skipped, the main control unit 17 performs a predetermined tap operation. After the measurement currently being performed is completed, the main control unit 17 returns to the measurement item to which the user wishes to return and performs the measurement.

In other words, when you want to return to a measurement item that you skipped, by performing a specific tap operation, a return function is provided that will return to the measurement item you want to return to and continue the measurement after the measurement you are currently performing has finished. Therefore, when you want to return to a measurement item that was interrupted by a skip, it is possible to respond to a return request to return to the measurement item you want to return to and complete the interrupted measurement.

(6) The main control unit 17 skips measurement items during measurement and performs measurements, and when measurements of all set measurement items are completed, displays a remeasurement screen 75 on the display screen 41, allowing the user to set the measurement items to be remeasured.

In other words, if all measurements are completed without returning to the measurement item to which a skip was made, a remeasurement function is provided that displays a remeasurement screen 75 that allows you to set the measurement item to be remeasured. Therefore, if there is a measurement item for which measurements have not been made the specified number of times due to a skip, it is possible to respond to a request to remeasure a measurement item for which the specified number of measurements has not been made.

Example 2 is an example in which the display format displayed on the display screen 41 of the monitor unit 40 from the pre-measurement preparation stage to the end of measurement and the display format of the measurement mode selection screen are different from those in Example 1.

First, referring to Figure 15, we will explain the basic display mode displayed on the display screen 41 of the monitor unit 40 from the preparation stage before measurement to the end of measurement.

As shown in Figure 15, the touch panel display screen 41 of the monitor unit 40 has an anterior eye image display area 411 that displays the anterior eye image Gf, an operation button display area 412 that displays operation buttons, and a measurement status display area 413 that displays measurement items.

As in Example 1, the anterior eye image display area 411 is an area with a rectangular area that is reduced in the vertical and horizontal directions from the overall area of the display screen 41. As in Example 1, the anterior eye image display area 411 displays the anterior eye image Gf having the corneal bright spot image P1, and also displays the target area mark 40e and the minimum pupil diameter determination mark 40f at the center of the anterior eye image display area 411. As in Example 1, the anterior eye image display area 411 displays the measurement results and number of measurements for each of the left and right eyes in addition to the anterior eye image Gf.

The operation button display area 412 is a strip-shaped area defined by the top, bottom, right, and upper left sides of the four outer edges of the display screen 41 excluding the anterior eye image display area 411 from the overall area of the display screen 41.

The upper edge of the operation button display area 412 is arranged with a mode button 1B, an RK mode display/setting button 2B, a TP mode display/setting button 3B, a subject ID button 4B, and an examiner ID button 5B. Here, the mode button 1B, the RK mode display/setting button 2B, and the TP mode display/setting button 3B form a triple mode button, similar to Example 1. Here, the RK mode display/setting button 2B and the TP mode display/setting button 3B have the function of switching and setting the measurement mode, as well as the function of a measurement status display unit. In other words, in Example 2, the RK mode display/setting button 2B and the TP mode display/setting button 3B are used as part of the measurement status display unit.

The upper left side of the operation button display area 412 is arranged with, from top to bottom, the R button 6B, the chin rest up/down movement button 12B, and the end button 9B.

On the right side of the operation button display area 412, from top to bottom, are arranged the L button 14B, the measurement head forward/backward button 21B, the start button 20B, and the auto/manual button 22B.

At the bottom of the operation button display area 412, from left to right, there are a cataract button 16B, a fixation target button 19B, a FOG button 18B, a display all data button 8B, a print button 13B, a corneal diameter button 17B, and a clear all measurement values button 7B.

The measurement status display section 413 is located at the bottom left side of the operation button display area 412 and displays the measurement status in simple English characters. The simple English character display section has a measurement mode display section MA, a first measurement item display section IA, and a second measurement item display section IB. The measurement mode display section MA displays "R/K" indicating R/K measurement mode, or "T/P" indicating T/P measurement mode. The first measurement item display section IA displays "KRT" indicating keratometry measurement, or "TONO" indicating tonometry measurement. The second measurement item display section IB displays "REF" indicating refometry measurement, or "PACHY" indicating pachymetry measurement.

Next, the setting of the measurement mode, measurement items, and eye to be measured by tapping the ophthalmologic apparatus 1 according to Example 2 will be described with reference to Figures 16 to 18.

After turning on the power switch 112, tap the mode button 1B located in the center of the top edge of the operation button display area 412. When this tapping operation is performed, as shown in Figure 16, a second measurement mode selection screen 72 is displayed, superimposed on the anterior eye image display area 411 of the display screen 41, and displaying the measurement mode and measurement items all at once.

As shown in FIG. 17, the second measurement mode selection screen 72 has individual selection buttons: a REF measurement button 91B and a KERAT measurement button 92B in the R/K measurement mode, and a TON measurement button 93B and a PAC measurement button 94B in the T/P measurement mode. Other buttons include an OK button 95B and a CANCEL button 96B.

In Example 1, the first measurement mode selection screen 71 was shown in a format that integrated the settings of the measurement mode, measurement items, and eye to be measured, but in Example 2, the settings of the measurement mode and measurement items are separated from the settings of the eye to be measured. The reasons for this are, firstly, that by setting the measurement mode and measurement items for each eye while observing the condition of the subject P, the examiner can perform the measurement while concentrating on the subject P. Secondly, in facilities where the measurement items rarely differ between the two eyes, being able to set only the measurement mode and measurement items will not interfere with normal medical treatment.

Setting the measurement mode and measurement items is performed by the REF measurement button 91B, KERAT measurement button 92B, TON measurement button 93B, PACIFIC measurement button 94B, RK mode display/setting button 2B, and TP mode display/setting button 3B.

Setting the eye to be measured is shared between the R button 6B and the L button 14B. When setting both the left and right eyes, the R button 6B and L button 14B are displayed without a lock icon, as shown in Figure 18A. On the other hand, when setting only one eye, for example the left eye, the lock icon IK is displayed partially overlapping the R button 6B by lock icon processing, and the L button 14B is displayed without a lock icon, as shown in Figure 18B.

Next, we will explain the measurement status display function when setting operation cases #1 to #4 are selected on the second measurement mode selection screen 72, with reference to Figures 19A to 19D.

Setting the REF measurement button 91B and KERAT measurement button 92B for the R/K measurement mode on the second measurement mode selection screen 72 by tapping is considered setting operation case #1. In setting operation case #1, as shown in FIG. 19A, "RK" is displayed on the RK mode display/setting button 2B, and "R/K" is displayed on the measurement mode display area MA of the measurement status display area 413. This display on the display screen 41 allows visual confirmation that the R/K measurement mode (REF measurement, KERAT measurement) has been set.

Setting operation case #2 occurs when only the REF measurement button 91B in the R/K measurement mode is set by tapping on the second measurement mode selection screen 72. In setting operation case #2, as shown in FIG. 19B, "RK" is displayed on the RK mode display/setting button 2B, and "REF" is displayed on the second measurement item display section IB of the measurement status display section 413. This display on the display screen 41 allows visual confirmation that REF measurement in the R/K measurement mode has been set.

If you want to set only the REF measurement in the R/K measurement mode, you can perform temporary manual settings without opening the second measurement mode selection screen 72 by tapping the RK mode display/setting button 2B and the second measurement item display section IB.

Setting operation case #3 occurs when the reflex measurement button 91B in the R/K measurement mode and the tono measurement button 93B in the T/P measurement mode are set by tapping on the second measurement mode selection screen 72. In setting operation case #3, as shown in FIG. 19C , during measurement in the R/K measurement mode, "RK" is displayed on the RK mode display/setting button 2B, and "REF" is displayed on the second measurement item display section IB of the measurement status display section 413. When the R/K measurement mode ends and the mode transitions to the T/P measurement mode, the measurement status display section 413 switches to display the T/P measurement mode, and "TONO" is displayed on the first measurement item display section IA. This display on the display screen 41 allows visual confirmation that the setting is to transition from reflex measurement in the R/K measurement mode to tono measurement in the T/P measurement mode.

Setting operation case #4 occurs when the Tono measurement button 93B and Pachy measurement button 94B for the T/P measurement mode are set by tapping on the second measurement mode selection screen 72. In setting operation case #4, as shown in FIG. 19D, "TP" is displayed on the TP mode display/setting button 3B, and "T/P" is displayed on the measurement mode display area MA of the measurement status display unit 413. This display on the display screen 41 allows visual confirmation that the T/P measurement mode (Tono measurement, Pachy measurement) has been set.

Next, we will explain how a long press transitions to a non-selected T/P measurement mode, with reference to Figures 20A and 20B.

In setting operation case #1 (upper left of Figure 20A), "RK" is displayed on the RK mode display/setting button 2B, and "R/K" is displayed on the measurement mode display area MA of the measurement status display unit 413 (lower left of Figure 20A). When not measuring in R/K measurement mode, pressing and holding the TP mode display/setting button 3B (lower center of Figure 20A) switches the measurement head from the R/K measurement head 12b to the T/P measurement head 12a.

By switching the measurement head, the lit button changes from the RK mode display/setting button 2B to the TP mode display/setting button 3B. At the same time, the display in the measurement status display unit 413 also switches from R/K measurement mode to T/P measurement mode, and "T/P" is lit in the measurement mode display unit MA (lower right part of Figure 20A).

Therefore, if you tap the mode button 1B during measurement, the second measurement mode selection screen 72 will be displayed (top right of Figure 20A). On the second measurement mode selection screen 72, the REF measurement button 91B and KERAT measurement button 92B for the R/K measurement mode, and the TON measurement button 93B and PAC measurement button 94B for the T/P measurement mode will be lit.

Furthermore, if you look at the measurement status display, when the measurement mode changes due to a long press, the display of the measurement mode and measurement items also changes in accordance with the mode change, such as from the lower left part of Figure 20A to the lower center part of Figure 20A to the lower right part of Figure 20A.

In setting operation case #2 (upper left of Figure 20B), "RK" is displayed on the RK mode display/setting button 2B, and "REF" is displayed on the second measurement item display section IB of the measurement status display section 413 (lower left of Figure 20B). When not measuring in R/K measurement mode, pressing and holding the TP mode display/setting button 3B (lower center of Figure 20B) switches the measurement head from the R/K measurement head 12b to the T/P measurement head 12a.

By switching the measurement head, the lit button changes from the RK mode display/setting button 2B to the TP mode display/setting button 3B. At the same time, the display in the measurement status display unit 413 also switches from R/K measurement mode to T/P measurement mode, and "T/P" is lit in the measurement mode display unit MA (lower right part of Figure 20B).

Therefore, if you tap the mode button 1B during measurement, the second measurement mode selection screen 72 will be displayed (top right of Figure 20B). On the second measurement mode selection screen 72, only the reflex measurement button 91B for the R/K measurement mode and the tono measurement button 93B and pachy measurement button 94B for the T/P measurement mode will be lit.

Furthermore, if you look at the measurement status display, when the measurement mode changes due to a long press, the display of the measurement mode and measurement items also changes in accordance with the mode change, such as from the lower left part of Figure 20B to the lower center part of Figure 20B to the lower right part of Figure 20B.

As described above, the ophthalmologic apparatus 1 of Example 2 provides the following advantages in addition to the advantage (1) above.

(7) The composite measurement head 12 includes a T/P measurement head 12a used in the T/P measurement mode and an R/K measurement head 12b used in the R/K measurement mode. The monitor unit 40 includes, in the operation button display area 412, a TP mode display/setting button 3B, an RK mode display/setting button 2B, and a measurement status display unit 413 having a measurement mode display unit MA, a first measurement item display unit IA, and a second measurement item display unit IB. When the measurement mode and measurement items to be performed on the subject's eye E are set, the main control unit 17 displays the set measurement mode on one of the TP mode display/setting button 3B and the RK mode display/setting button 2B and on the measurement mode display unit MA, and displays the set measurement items on the first measurement item display unit IA and the second measurement item display unit IB.

In other words, the measurement status display section 413 of Example 2 only lists the measurement items for each measurement mode, thereby occupying less space than the measurement status display section 413 of Example 1, which lists all measurement items in measurement order. Furthermore, for the measurement mode status display, a button display for the TP mode display/setting button 3B or the RK mode display/setting button 2B is added to the display on the measurement status display section 413. Therefore, while the display format of the operation button display area 412 is minimally changed from the existing format, the set measurement status can be recognized at a glance when looking at the display screen 41.

(8) When either the T/P measurement mode or the R/K measurement mode is not set, pressing and holding the measurement mode display/setting button for the measurement mode that is not set causes the main control unit 17 to switch the composite measurement head 12 and transition to the measurement mode that is not set. When the measurement mode transitions due to a long press, the display of the measurement mode and measurement items transitions in accordance with the mode transition.

For example, when not performing a measurement in the set R/K measurement mode, pressing and holding the TP mode display/setting button 3B, which is not set, switches the composite measurement head 12 to the T/P measurement head 12a and transitions to the T/P measurement mode, which is not set. When this long press button is operated to transition between modes, the display of the measurement mode and measurement items also transitions in accordance with the mode transition. Therefore, when you want to transition to a measurement mode that is not set during measurement, you can set the measurement mode transition with just a long press of a single button, and the transition status of the measurement mode and measurement items associated with the mode transition setting can be recognized at a glance by looking at the display screen 41.

The ophthalmic device of the present invention has been described above based on Examples 1 and 2. However, the specific configuration is not limited to these examples. Design changes and additions are permitted as long as they do not deviate from the gist of the invention as defined in each claim.

In Examples 1 and 2, an example of an ophthalmic device 1 equipped with a composite measurement head 12 using a T/P measurement head 12a (first measurement head) and an R/K measurement head 12b (second measurement head) was shown. However, the measurement head is not limited to the composite measurement head used in Examples 1 to 3, and may be any measurement head that has multiple measurement modes and multiple measurement items, and in which the measurement mode and measurement items can be changed before or during measurement. In addition to the T/P measurement head and R/K measurement head, various ocular characteristic measurement heads for the subject eye may also be used, such as a corneal shape measurement head, fundus photography head, axial length measurement head, endothelial cell measurement head, etc.

In Example 1, the measurement status display section 413 in part of the operation button display area 412 uses measurement type items that indicate the measurement mode and type of measurement item, and when the measurement order is set to standard or arbitrary, the measurement type items are displayed horizontally in the set measurement order. In Example 2, the measurement status display section 413 in part of the operation button display area 412 includes a TP mode display/setting button 3B, an RK mode display/setting button 2B, a measurement mode display section MA, a first measurement item display section IA, and a second measurement item display section IB. However, the measurement status display section is not limited to these examples, and various modifications may be made to the measurement status display section. For example, if it is displayed on the display screen, the measurement status display section may be displayed in a display position in an area other than the operation button display area. Furthermore, when displaying in measurement order, the items may be displayed vertically rather than horizontally.

In Examples 1 and 2, when mode button 1B in the operation button display area 412 is tapped, measurement mode selection screens 71 and 72, which display the measurement modes and measurement items collectively, are displayed in the anterior eye image display area 411. A preferred example is shown in which the measurement mode and measurement items to be performed on the subject's eye E are set by touching the display items on the measurement mode selection screens 71 and 72. However, the setting of the measurement mode and measurement items to be performed on the subject's eye is not limited to the setting on the measurement mode selection screen, and may also be made using, for example, the REF/KRT measurement mode button, TONO/PACHY measurement mode button, REF/KRT→TONO/PACHY continuous measurement mode button, etc. in the operation button display area.

In Examples 1 and 2, the mode button is tapped to display the measurement mode selection screen, and the measurement mode and measurement items to be performed on the subject's eye are set by touching the display items on the measurement mode selection screen. Once the measurement mode and measurement items are set, the set measurement mode and measurement items are displayed in the measurement status display. However, a memory call function may be added to Examples 1 and 2 for the display of the measurement mode selection screen or the measurement status display, so that the display changes to the set display by automatic call depending on the day of the week or date and time, or by simply performing a call operation. Here, the "memory call function" refers to a function that stores the measurement mode and measurement items to be performed for a specific prescription when they are set, and then automatically calls them or displays the display based on the stored measurement mode and measurement items from the next time. For example, if the day of the week and date and time for measurement are specified for a prescription by a glaucoma specialist, eyeglass prescription, contact lens prescription, etc., the day of the week and date and time can be stored along with the settings, and an automatic call is used to automatically call the settings when the stored day of the week and date and time arrive. Additionally, for example, if a standard basic eyeglass prescription does not have a specific day or date for measurement, a call operation is used to recall stored settings using a button or other means. This memory call function eliminates the need to go to the setup screen each time a measurement starts and press multiple buttons to select measurement items one by one from the initial settings, reducing the operational burden on the examiner.

In Examples 1 and 2, the display screen 41 of the monitor unit 40 attached to the device main body 10 serves as the operation unit 19, and an example of an ophthalmic device 1 in which the subject P and the examiner perform measurements while facing each other in close proximity is shown. However, the operation unit may be, for example, a detachable monitor unit, which the examiner can carry and remotely operate from a separate room. Furthermore, an external device such as a personal computer with a touch-screen display, a tablet terminal, a smartphone, or other information terminal or dedicated terminal may serve as the monitor unit, separate from the monitor unit attached to the device main body, and connected to the device main body via wireless communication. In this case, by installing the external device as the monitor unit in a desired location away from the ophthalmic device, ophthalmic measurements can be performed remotely while visually checking the subject's condition from the remote location where the external device is installed.

1 Ophthalmic device 12 Composite measurement head 12a T/P measurement head (first measurement head)
12b R/K measuring head (second measuring head)
40 Monitor unit 41 Display screen 411 Anterior eye image display area 412 Operation button display area 413 Measurement status display unit 20 Face support unit 16 XYZ drive mechanism/drive circuit (drive mechanism)
17 Main control unit (control unit)
1B Mode button 2B RK mode display/setting button 3B TP mode display/setting button 71 First measurement mode selection screen 72 Second measurement mode selection screen P Subject E Eye to be examined

Claims (7)

a measurement head that is disposed in a position facing the subject's eye and measures a plurality of measurement items while observing an image of the anterior segment of the eye via an optical system;
a drive mechanism that drives the measurement head up and down, left and right, front and back with respect to the eye to be examined;
a monitor unit having a touch panel type display screen in which an anterior eye image display area for displaying the anterior eye image and an operation button display area for displaying operation buttons are set;
a control unit that controls each unit of the device based on input information including a touch operation on the display screen;
Equipped with
the monitor unit has a measurement status display unit that displays a measurement status on the display screen using a measurement type item that indicates a measurement mode and a type of the measurement item ;
The ophthalmic device is characterized in that, when the measurement mode and the measurement items to be performed on the subject's eye are set and the measurement order is set to standard or arbitrary, the control unit displays the measurement type items in the set measurement order on the measurement status display unit. 2. The ophthalmic apparatus according to claim 1 ,
The ophthalmologic apparatus is characterized in that, when measurement of the subject's eye is started, the control unit displays a measurement type item that is currently being measured among the plurality of measurement type items displayed in order of measurement in a highly visible manner, with higher visibility than measurement type items that are not being measured. 3. The ophthalmic apparatus according to claim 2 ,
The ophthalmologic device is characterized in that, when a user wants to skip to a measurement item scheduled to be performed after a measurement item currently being performed during continuous measurements, the control unit performs measurement of the skipped measurement item by performing a predetermined tap operation. 4. The ophthalmic apparatus according to claim 3 ,
The ophthalmologic device is characterized in that, when a predetermined tap operation is performed during measurement of the skipped measurement item to return to measurement of the interrupted measurement item, the control unit performs measurement of the measurement item to which the user wishes to return by returning after completion of measurement of the skipped measurement item. 4. The ophthalmic apparatus according to claim 3 ,
the control unit performs measurements in the order of the measurement items following the measurement of the skipped measurement item, and when the measurement of the last measurement item in the measurement order is completed, displays a remeasurement screen on the display screen for setting the measurement item to be remeasured. 2. The ophthalmic apparatus according to claim 1,
The measuring head includes a first measuring head used in a first measurement mode and a second measuring head used in a second measurement mode,
the monitor unit has, on the display screen, a first measurement mode display/setting button, a second measurement mode display/setting button, and a measurement status display unit having a measurement mode display unit and a measurement item display unit;
When the measurement mode and measurement items to be performed on the subject's eye are set, the control unit displays the set measurement mode on one of the first measurement mode display/setting button and the second measurement mode display/setting button and on the measurement mode display unit, and displays the set measurement items on the measurement item display unit. 7. The ophthalmic apparatus according to claim 6 ,
When one of the first measurement mode and the second measurement mode is not set, if the control unit presses and holds down a measurement mode display/setting button for the measurement mode that is not set, the control unit switches the measurement head and transitions to the measurement mode that is not set,
When the measurement mode is changed by the long press, the display of the measurement mode and the measurement items is changed in accordance with the mode change.