Intraocular lens

• US 7,410,500 B2
• Filed: 11/28/2002
• Issued: 08/12/2008
• Est. Priority Date: 11/30/2001
• Status: Expired due to Fees

• Current Assignee: Rayner Intraocular Lenses Ltd. (Rayner Surgical Group Ltd.)
• Original Assignee: Rayner Intraocular Lenses Ltd. (Rayner Surgical Group Ltd.)
• Inventors: Claoue, Charles
• Primary Examiner(s): Willse; Dave
• Assistant Examiner(s): Blanco; Javier G
• Application Number:
  US10/496,206
• Publication Number:
  US 20050049699A1
• Time in Patent Office: 2,084 Days
• Field of Search: 623/6.26
• US Class Current: 623/6.26
• CPC Class Codes: A61F 2/1602 Corrective lenses for use in addition to the natural lenses of the eyes or for pseudo-phakic eyes
• CPC Class Codes: 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
• CPC Class Codes: A61F 2/1616 Pseudo-accommodative, e.g. multifocal or enabling monovision
• CPC Class Codes: A61F 2/1656 Fresnel lenses, prisms or plates

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

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.

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

3. 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.