Surface-treatment of silicone medical devices comprising an intermediate carbon coating and graft polymerization
 The present invention provides an optically clear, hydrophilic coating upon the surface of a silicone medical device by sequentially subjecting the surface of the lens to plasma polymerization reaction in a hydrocarbon atmosphere to form a carbon layer, and then graft polymerizinga mixture of monomers comprising hydrophilic monomers onto the carbon layer. The invention is especially useful for forming a biocompatible coating on silicone hydrogel contact lenses. 
Bausch & Lomb Incorporated
C A G C C C C C
C08J A61L G02B C08J C08J C08J C08J C08J
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Joseph A. Paul L. George L. Daniel M.
McGee Valint, Jr. Grobe, III Ammon, Jr.