Polymeric compositions and intraocular lenses made from same

Details Polymeric compositions and intraocular lenses made from same Polymeric compositions and intraocular lenses made from same

Filed on

1992-11-09

Date issued

1994-07-19

Examiner

Schofer, Joseph L.

Patent Class

Synthetic resins or natural rubbers -- part of the class 520 ser

SubClass

Synthetic resins

SubSubClass

Polymers from only ethylenic monomers or processes of...

Other Related Categories

5263031, 5263285, 526347, 623 6, C08F22610, C08F22054, C08F22010, C08F21208, A61F 216

Type

Patent

Status

active

Patent number

053310730

Description

ABSTRACT:
New high refractive index polymeric compositions and foldable intraocular lenses made from such compositions are disclosed. In one embodiment, the present compositions comprise a copolymer including a major amount of a first constituent derived from a first monomeric component the homopolymers of which have a refractive index of at least about 1.50, a minor amount of a second constituent derived from a second monomeric component other than the first monomeric component the homopolymers of which have a glass transition temperature of less than about 300.degree. C., preferably less than about 220.degree. C., and a third constituent derived from a crosslinking monomeric component in an amount effective to facilitate returning a deformed intraocular lens made of the composition to its original shape.

REFERENCES:
patent: 4834750 (1989-05-01), Gupta
patent: 4834753 (1989-05-01), Sulc et al.
patent: 4916197 (1990-04-01), Vacik et al.
patent: 5147394 (1992-09-01), Siepser et al.
Abstract: Nonhydrophilic flexible intraocular lens materials having high strength. JP 62097559 A2 7 May 1987, Showa, 7 pp. (Japan).
Acrylens.TM. A Technical Evaluation Of Foldable Intraocular Lenses, 1990 Loptex Research Inc. Data Sheet.
Abstract 19-6, Fluoro Acrylic Fluoroalkyl Methacrylate Yoshida et al.

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