Edge design for reducing unwanted photic effects in intraocular lenses

Patent metadata

Field	Value
Publication number	US-9931201-B2
Application number	US-201715397014-A
Country	US
Kind code	B2
Filing date	Jan 3, 2017
Priority date	Dec 6, 2012
Publication date	Apr 3, 2018
Grant date	Apr 3, 2018

Abstract

An intraocular lens (IOL) has an optic, a peripheral rim, and a reduced thickness region connecting the optic to the peripheral rim. The peripheral rim has a continuously curving outer edge that it does not include any tangents parallel to the optical axis either along its length or at the intersection of the outer edge with the anterior or posterior surfaces of the IOL.

First claim

What is claimed is:

1. An intraocular lens (IOL) formed from a soft, foldable material, comprising:
an optic having an anterior optical surface having a first base curvature and a posterior optical surface having a second base curvature, wherein:
a diameter of the posterior optical surface is greater than a diameter of the anterior optical surface; and
the first and second base curvatures collectively define an optical power of the optic; and

a peripheral rim extending between the anterior optical surface and the posterior optical surface and intersecting each surface at a respective corner, the peripheral rim defining a cross section having a continuously curving outer edge having a constant radius and that does not include any tangents parallel to an optical axis of the optic.

2. The IOL of claim 1 , wherein the first base curvature is the same as the second base curvature.

3. The IOL of claim 1 , wherein the first base curvature is different than the second base curvature.

4. The IOL of claim 1 , wherein the optic is a monofocal refractive optic.

5. The IOL of claim 1 , wherein the optic is toric, aspheric or both.

6. The IOL of claim 1 , wherein at least a portion of the peripheral rim is textured.

7. The IOL of claim 1 , wherein at least a portion of the anterior optical surface is textured.

8. The IOL of claim 1 , wherein at least a portion of the posterior optical surface is textured.

Assignees

• Novartis Ag

Inventors

• Angelopoulos Robert D
• Das Kamal K
• Mccann Jonathan

Classifications

• A61F2/1613 Primary

  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 title

• A61F2/1645

  Toric lenses · CPC title

• A61F2002/1696

  Having structure for blocking or reducing amount of light transmitted, e.g. glare reduction · CPC title

• A61F2250/0036

  differing in thickness · CPC title

• A61F2250/0053

  differing in optical properties · CPC title