POLYMERIC COMPOSITIONS AND INTRAOCULAR LENSES MADE FROM SAME

摘要

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 30 DEG C, preferably less than about 22 DEG C, and a third constituent derived from a cross-linking monomeric component in an amount effective to facilitate returning a deformed intraocular lens made of the composition to its original shape.