Polymers and their use for ophthalmic lenses

摘要

High refractive index copolymers comprised of monomers having the formula: wherein X is H or CH3; m is 0-10; Y is nothing, O, S, or NR wherein R is H, CH3, CnH2n+1 (n=1-10) iso OC3H7, C6H5, or CH2C6H5; Ar is an aromatic ring which is unsubstituted or substituted with H, CH3, C2H5, n-C3H7, iso-C3H7, OCH3, C6H11, Cl, Br, C6H5 or CH2C6H5; and n is 1-5; and a cross linking monomer having a plurality of polymerizable ethylenically unsaturated groups are disclosed. Intraocular lenses made of the copolymers which can be inserted into an aphakic eye through a relatively small incision are also disclosed.