Wettable silicone hydrogel contact lenses and related...

Details Wettable silicone hydrogel contact lenses and related... Wettable silicone hydrogel contact lenses and related...

2007-06-11

2009-08-11

Yoon, Tae H (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C351S16000R, C351S162000, C528S026000, C528S030000

Reexamination Certificate

active

07572841

ABSTRACT:
Silicone hydrogel contact lenses having ophthalmically acceptable surface wettabilities are obtained from pre-extracted polymerized silicone hydrogel contact lens products having relatively large amounts of removable or extractable materials. The silicone hydrogel contact lenses can be obtained from non-polar resin based contact lens molds and without surface treatments or an interpenetrating polymeric network of a polymeric wetting agent. Related lens products, polymerizable compositions, and methods are also described.

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