Ophthalmic prosthetic to treat negative and positive dysphotopsia
View Patent ↗An ophthalmic prosthetic and method for correcting negative and positive dysphotopsia. The ophthalmic prosthetic comprises a peripheral light blocking implant member adapted to locate in a gap between an iris and an intraocular implant lens. The gap is between the anterior surface of the lens and the posterior portion of the iris. An opacity of the peripheral light blocking implant member is selectively positioned to block passage of light.
1 . A method for correcting negative and positive dysphotopsia for a person in need of correction of or at risk for positive and negative dysphotopsia caused by light passing between an iris or ciliary body and an intraocular lens of an eye, the method comprising:
forming an incision in a cornea,
inserting an ophthalmic prosthetic, which includes an annular body or an annular segment, into the eye, between the iris and the intraocular lens, through the incision, and
locating the annular body or annular segment either within a capsular bag or within a ciliary sulcus, to completely fill an axial gap and/or substantially fill a radial gap between the iris and the intraocular lens and block the light, which travels through the pupil and tangentially to the intraocular lens, from striking or bypassing a circumferential edge of the intraocular lens and striking an anterior retina, the axial and/or radial gap being present prior to the inserting of the ophthalmic prosthetic into the eye, and
wherein the ophthalmic prosthetic has anterior and posterior surfaces that are both located anteriorly of the intraocular lens.
2 . The method according to claim 1 , wherein the ophthalmic prosthetic or at least a sector thereof is located in a nasal hemisphere of the eye, a temporal hemisphere of the eye, or both.
3 . The method according to claim 1 , wherein the method further comprises fixating the ophthalmic prosthetic to one or more structures of the eye.
4 . The method according to claim 3 , wherein the ophthalmic prosthetic is passively fixated within the capsular bag or the ciliary sulcus.
5 . The method according to claim 3 wherein the ophthalmic prosthetic is fixated via a periphery of the ophthalmic prosthetic, haptics, sutures, or any combination thereof.
6 . The method according to claim 1 , wherein the method further includes rolling the ophthalmic prosthetic into a roll having a major diameter no greater than 3 mm.
7 . The method according to claim 1 , wherein the annular body or annular segment of the ophthalmic prosthetic has an outer diameter of between 9 mm and 15 mm such that the radial gap is filled in a coronal plane of the eye.
8 . The method according to claim 7 , wherein the ophthalmic prosthetic has a thickness of about 0.05 mm to about 1.2 mm such that the axial gap is filled.
9 . The method according to claim 1 , wherein the annular body or annular segment is opaque, partially opaque, translucent, polarized, froster, or any combination thereof.
10 . A method for correcting negative and positive dysphotopsia for a person in need of correction of or at risk for positive and negative dysphotopsia caused by light passing between an iris or ciliary body and an intraocular lens of an eye, the method comprising:
forming an incision in a cornea,
inserting an ophthalmic prosthetic, which includes an annular body or an annular segment, into the eye, between the iris and the intraocular lens, through the incision, and
locating the annular body or annular segment either within a capsular bag or within a ciliary sulcus, to completely fill an axial gap and/or substantially fill a radial gap between the iris and the intraocular lens and block the light, which travels through the pupil and tangentially to the intraocular lens, from striking or bypassing a circumferential edge of the intraocular lens and striking an anterior retina, the axial and/or radial gap being present prior to the inserting of the ophthalmic prosthetic into the eye; and
wherein the annular body or annular segment of the ophthalmic prosthetic has an outer diameter that fills the radial gap in a coronal plane of the eye and/or the ophthalmic prosthetic has a thickness of about 0.05 mm to about 1.2 mm such that the axial gap is filled; and
wherein the ophthalmic prosthetic has anterior and posterior surfaces that are both located anteriorly of the intraocular lens.
11 . The method according to claim 10 , wherein the annular body or annular segment is opaque, partially opaque, translucent, polarized, frosted, or any combination thereof.