Plasma surface treatment of silicone hydrogel contact lenses
 The present invention provides an optically clear, hydrophilic coating upon the surface of a silicone hydrogel lens by subjecting the surface of the lens to a process comprising plasma treatment, hydration, and heat sterilization that is controlled to result in a silicate-containing film having a mosaic pattern of projecting plates surrounded by fissures when viewing a 50.times.50 micron square AFM image, wherein the peak-to-valley distances of the fissures are on average between about 100 and 500 angstroms and the plate coverage is on average between about 40% to 99%. 
Bausch & Lomb Incorporated
C C B G C B
C08J C08J B82Y G02B C08J B29D
inventional additional inventional inventional additional inventional
Paul L. George L. Michael J. Daniel M.
Valint, Jr. Grobe Moorehead Ammon, Jr.