Ultraviolettabsorbierende intraoculare Lense

摘要

An ultraviolet light absorbing ocular lens comprising a vinyl type copolymer containing from 0.01 to 0.5% by weight of a benzotriazole type ultraviolet light absorbing monomer as chemically bonded therewith, the ultraviolet light absorbing monomer having the formula: (wherein R1 is H or CH3 and n is 2 or 3). v