INTRAOCULARLINSE.

摘要

An intraocular lens including at least a non-toxic, biocompatible, hydrolytically and enzymatically stable, photodegradation resistant, polymeric optical zone portion, wherein said polymeric optical zone portion has the following characteristics, when in osmotic equilibrium with body liquids: a) softening temperature Tsbetween about 0 DEG C and about 42 DEG C; b) damaging temperature Td higher than 42 DEG C; c) refractive index greater than 1.39; and d temperature range of elastic deformation Te above Ts but below Td; and when said polymeric optical zone portion is heated to Te one of its original dimensions is reduced by at least 20%, then cooled to at least 5 DEG C below Tsand, upon reheating to Tesaid polymeric optical zone portion will return to its original dimensions existing prior to said first heating, dimensional reduction and cooling.