Surface treatment for silicone hydrogel contact lenses comprising hydrophilic polymer chains attached to an intermediate carbon coating
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 in a hydrocarbon-containing atmosphere and then covalently attaching a preformed hydrophilic polymer to the surface of the carbon coating. The invention is especially useful for forming a biocompatible coating on a silicone contact lens.
Bausch & Lomb Incorporated
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Y10T G02B C08J C08J B29D Y10T Y10T C08J Y10T Y10T
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George L. Richard M. Paul L. Joseph A. Daniel M.
Grobe, III Ozark Valint, Jr. McGee Ammon, Jr.