Soft gas permeable contact lens having improved clinical...

Details Soft gas permeable contact lens having improved clinical... Soft gas permeable contact lens having improved clinical...

B - Operations, Transporting

29

D

18/106, 88/40

B29D 11/00 (2006.01) C08F 30/08 (2006.01) C08F 230/08 (2006.01) C08J 3/28 (2006.01)

Patent

CA 2040419

2040419 9104283 PCTABS00003 A hydrophilic soft gas permeable contact lens having substantially improved clinical performance by the provision of a sufficient higher proportion of hydroxy acrylic units to silicon units in the lens surface layer, as compared to that existing in the lens core, by the surface treatment of the lens, such as by reacting of the lens surface with polyols and base or acid or by radiation treatment of the base lens to graft, deposit or coat thereon hydroxy acrylic units.

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