Wettable surface modified contact lens fabricated from an oxirane containing hydrophobic polymer

Abstract

A contact lens possessing a wettable surface in its aqueous environment of use fabricated from a hydrophobic addition polymer incorporating between about 0.5 and about 30% weight oxirane substituted units in the backbone thereof, wherein the outer surfaces of said lens contain an effective hydrophilic inducing amount of a reaction product of said oxirane substituted units of the formula ##STR1## wherein R is hydrogen or methyl; R.sub.1 is ##STR2## or lower alkylene; n is 1 to 4; and R.sub.0 is hydrogen or ##STR3## with a water soluble reactive organic amine, alcohol, thiol, urea or thiourea or a sulfite, bisulfite or thiosulfate, and the use thereof by placement in the eye of a patient in need of the same to correct vision defects of a refractive nature.

Dependencies are inferred from the claim text.