US 5,628,794 A · Multifocal corneal implant lens having a hydrogelo coating

Abstract

Hydrogel coated multifocal intraocular implantable lens having an anti-glare edge surrounded by a hydrogel ring having nutrient passage capabilities.

Dependent claims

A small corneal implant lens of rigid material having an outer diameter less than 2.5 mm and having an outer edge;

a. said lens having a coating of hydrogel material in the range from 0.001 to 100 microns thick over an active area of said lens;
b. said lens including a ring of hydrogel material extending outwardly from said outer edge of said lens at least 0.5 mm;
c. wherein the outer edge of said lens has a geometric shape selected for the minimization of the diffracted image from said edge.

Dependencies are inferred from the claim text.

Facts

Application

08/613,958Filed 8 Mar 1996

Granted

13 May 1997

Term ends

Not estimatedThe source records don’t support an estimate.

A61F 2/1613
Intraocular lenses: having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative…
A61F 2/145
Eye parts, e.g. lenses or corneal implants; Artificial eyes: corneal inlays, onlays, or lenses for refractive correction
A61F 2/15
Eye parts, e.g. lenses or corneal implants; Artificial eyes: implant having one or more holes, e.g. for nutrient transport, for facilitating handling
A61F 2/1618
Pseudo-accommodative, e.g. multifocal or enabling monovision: multifocal lenses

Hydrogel coated multifocal intraocular implantable lens having an anti-glare edge surrounded by a hydrogel ring having nutrient passage capabilities.

Dependent claims

A small corneal implant lens of rigid material having an outer diameter less than 2.5 mm and having an outer edge;

a. said lens having a coating of hydrogel material in the range from 0.001 to 100 microns thick over an active area of said lens;
b. said lens including a ring of hydrogel material extending outwardly from said outer edge of said lens at least 0.5 mm;
c. wherein the outer edge of said lens has a geometric shape selected for the minimization of the diffracted image from said edge.

Dependencies are inferred from the claim text.