Soft corneal contact lens - having glow discharge polymerised lipid-permeable, hydrophilic, ultra:thin barrier coating

摘要

Soft corneal contact lens comprising a soft, highly oxygen-permeable, polymeric lens has on the surface an ultrathin, optically clear, lipid-permeable hydrophilic barrier coating comprising the reaction prod. resulting from an electrical glow discharge polymerisation process conducted in a gaseous atmos. The atmos. consists of at least one of (a) hydrocarbons; (b) halogenated hydrocarbons; (c) halogenated hydrocarbons and hydrogen; (d) hydrocarbons and an elemental halogen; and (e) mixtures of these.