NZ785191B2 - Intraocular pseudophakic contact lens with mechanism for securing by anterior leaflet of capsular wall and related system and method - Google Patents

Abstract

apparatus includes an intraocular pseudophakic contact lens (3100) having an optical lens and haptics (3104) extending radially from the optical lens and configured to be inserted under an anterior leaflet of a capsular wall in an eye in order to capture and confine the haptics under the anterior leaflet and secure the intraocular pseudophakic contact lens against an artificial intraocular lens in the eye. Anterior surfaces of the haptics are configured to contact an inner capsular wall surface at the anterior leaflet. Posterior surfaces of the haptics include ridges configured to capture at least one edge of the artificial intraocular lens in order to secure the intraocular pseudophakic contact lens to the artificial intraocular lens. Different portions of the optical lens provide different amounts of magnification such that a first portion (3114) of the optical lens provides a first amount of magnification and a second annular portion (3112) surrounding the first portion of the optical lens provides no magnification.

Claims (13)

1. An apparatus comprising: an intraocular pseudophakic t lens comprising: an optical lens; and 5 haptics extending ly from the optical lens and configured to be inserted under an anterior leaflet of a capsular wall in an eye in order to capture and confine the haptics under the anterior leaflet and secure the intraocular pseudophakic contact lens against an artificial intraocular lens in the eye; wherein anterior surfaces of the haptics comprise capsular wall-engaging surfaces 10 configured to t an inner capsular wall surface at the anterior t, the capsular wallengaging surfaces configured to promote confinement, capture, or attachment of the haptics; wherein posterior surfaces of the s comprise ridges configured to capture at least one edge of the artificial cular lens in order to secure the intraocular pseudophakic contact lens to the artificial intraocular lens; 15 n different portions of the optical lens provide different amounts of magnification such that a first portion of the l lens provides a first amount of magnification and a second portion of the optical lens provides a second amount of magnification; wherein the first portion of the optical lens provides a ied amount of magnification 20 and forms a central region of the optical lens; and wherein the second portion of the optical lens provides no magnification and forms an annular region around the first portion of the optical lens.

2. The apparatus of claim 1, wherein the ridge of each haptic comprises a lip 25 projecting from the ridge and extending inward from the ridge.

3. The apparatus of claim 1 or claim 2, wherein the optical lens is configured to at least partially t a residual refractive error in the eye, the residual refractive error comprising a refractive error that exists in the eye after implantation of the artificial intraocular 30 lens in the eye.

4. The apparatus of claim 1 or claim 2, wherein the first and second amounts of magnification are not based on a residual tive error in the eye.

5. The apparatus of any preceding claim, wherein the intraocular pseudophakic contact lens comprises at least three haptics extending radially from the optical lens.

6. A system sing: an artificial intraocular lens comprising a first optical lens and first haptics configured to be implanted within a capsular bag in an eye; and an intraocular pseudophakic contact lens comprising: 10 a second optical lens; and second haptics extending radially from the second optical lens and configured to be ed under an or leaflet of a capsular wall in the eye in order to capture and confine the second haptics under the anterior leaflet and secure the intraocular pseudophakic contact lens against the artificial intraocular lens in the eye; 15 wherein anterior surfaces of the second haptics comprise capsular wall-engaging surfaces configured to t an inner capsular wall surface at the anterior leaflet, the capsular wall-engaging surfaces configured to promote confinement, capture, or ment of the second haptics; wherein posterior surfaces of the second haptics comprise ridges configured to capture 20 at least one edge of the artificial intraocular lens in order to secure the intraocular pseudophakic contact lens to the artificial intraocular lens; wherein ent portions of the second l lens provide different amounts of magnification such that a first portion of the second optical lens provides a first amount of magnification and a second portion of the second l lens provides a second amount of 25 magnification; n the first portion of the second optical lens provides a ied amount of magnification and forms a central region of the second l lens; and wherein the second portion of the second optical lens provides no magnification and forms an annular region around the first portion of the second optical lens.

7. The system of claim 6, wherein the ridge of each second haptic comprises a lip projecting from the ridge and extending inward from the ridge.

8. The system of claim 6 or claim 7, wherein the second optical lens is configured to at least partially t a residual refractive error in the eye, the residual refractive error comprising a refractive error that exists in the eye after tation of the artificial cular lens in the eye.

9. The system of claim 6 or claim 7, wherein the first and second amounts of magnification are not based on a residual refractive error in the eye.

10. The system of any one of claims 6 to 9, wherein the intraocular pseudophakic 10 contact lens comprises at least three second haptics extending radially from the second optical lens.

11. The system of any one of claims 6 to 10, wherein the second haptics are shorter than the first haptics.

12. The apparatus of claim 1, comprising at least three haptics; wherein each of the haptics comprises an inner portion and an outer portion; n the inner portion of each haptic is positioned between the optical lens and the outer portion of the haptic; 20 wherein the inner portion of each haptic projects d and posteriorly from the optical lens; and wherein, for each , the ridge is defined where a larger thickness of the outer portion of the haptic meets a smaller thickness of the inner portion of the haptic. 25

13. The apparatus of claim 12, wherein the posterior surfaces of the haptics comprise lips projecting inward from the ridges, the lips configured to capture the at least one edge of the artificial intraocular lens in order to secure the intraocular pseudophakic contact lens to the cial intraocular lens. None set by Mara.Cassar MigrationNone set by Mara.Cassar Unmarked set by Mara.Cassar None set by Mara.Cassar MigrationNone set by Mara.Cassar Unmarked set by Mara.Cassar ‘vx‘ _£;.~.. “