# US 7,410,500 B2 · Intraocular lens

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- Number: US 7,410,500 B2
- Document ID: US7410500B2
- Status: Granted
- Kind: B2
- Application number: 10/496,206
- Filed: 2002-11-28
- Published: 2005-03-03
- Granted: 2008-08-12
- Earliest claimed: 2001-11-30
- Assignees: Rayner Intraocular Lenses Limited
- Inventors: Charles Claoue
- Web page: https://patentgrep.com/patent/US7410500B2

## CPC

- A61F 2/1602: {Corrective lenses for use in addition to the natural lenses of the eyes or for pseudo-phakic eyes}
- A61F 2/1613: {having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus}
- A61F 2/1656: {Fresnel lenses, prisms or plates}
- A61F 2/1616: {Pseudo-accommodative, e.g. multifocal or enabling monovision}
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)

## Abstract

An intraocular lens comprises, as one face thereof, a Fresnel prism. Such a lens can be used for the treatment of a macular condition requiring a change of focus, e.g. age-related macular degeneration.

## Claims

### Claim 1

A method for the treatment of a macular condition requiring a change of focus, which comprises replacing a patient's crystalline lens with an intraocular lens comprising, as one face thereof, a Fresnel prism, wherein the Fresnel prism is positioned as part of the intraocular lens such that incident light striking the intraocular lens is deviated and an image is moved away from the macula.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the macular condition is age-related macular degeneration.

### Claim 3 (depends on 1)

The method according to claim 1, wherein said method comprises replacing a patient's crystalline lens with a composite intraocular lens comprising an intraocular lens comprising, as one face thereof, a Fresnel prism and also a material covering said one face, so that the composite intraocular lens has a smooth surface.