High water content silicone hydrogels

Details High water content silicone hydrogels High water content silicone hydrogels

2011-05-03

2011-05-03

Ben, Loha (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

C351S16000R, C523S106000, C523S107000, C428S447000, C526S279000

Reexamination Certificate

active

07934830

ABSTRACT:
Silicone hydrogels formed from a hydrated polymerization product of a monomer mixture comprising (a) a major amount of a non-silicone-containing hydrophilic monomer; and (b) a minor amount of a silicone-containing monomer, wherein the hydrogel has a water content of greater than 50 weight percent are disclosed.

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International Search Report (PCT/ISA/210) and Written Opinion (PCT/ISA/237) mailed on Feb. 5, 2009.
William J. Benajmin et al., “The Oxygen Permeability of Reference Materials,” Optom Vis Sci, (vol. 74), (Issue. 12s), (p. 95), (Oct. 1, 1997).

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