Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Reexamination Certificate
2007-04-10
2007-04-10
Schwartz, Jordan (Department: 2873)
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
C351S16000R, C351S16000R, C526S279000
Reexamination Certificate
active
10470651
ABSTRACT:
This invention is directed to ophthalmic materials and ophthalmic lenses that are a co-polymerization product of a (a) hydrophilic monomer with (b) a tris(siloxy)silyl group-containing monomer, (c) a wide variety of hydrophobic monomers (both aliphatic and aromatic) and usually a (d) polyfluorinated monomer, as well as optional monomers or monomer mixtures that can include a cationic monomer, a non-aromatic hydrophobic monomer and a poly(dimethylsiloxy)silyl group-containing monomer. A contact lens prepared from such a co-polymer exhibits enhanced water content, while maintaining exceptional oxygen permeability, thereby providing a lens that can be worn comfortably for prolonged periods of time. A process for the preparation of such lenses is also disclosed.
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Brennan, et al., Optical Vision Science, 74 (8): 609-623 (1997).
Carlson Greg
Ocampo Gerardo J.
Quinn Michael H.
Rosenzweig Howard S.
Tucker Robert
Novartis AG
Schwartz Jordan
Stultz Jessica
Zhou Jian
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