Pilkington Barnes Hind, Inc.

Pbh, Inc.

Pilkington Diffractive Lenses Limited

William E Meyers

John M Evans

Ashok R Thakrar

Bradley K Overmyer

Joseph Weinschenk

Michael H Freeman

Optical lenses and methods of preparing the same, in which an active material encapsulated in resin capsules is impregnated in said lens, adjacent an optical surface thereof. The active material may be a coloring material for producing a printed color pattern in the iris or other areas of the lens, or it may be a therapeutic agent.

Colored contact lenses and method of making same

Disclosed are methods for extracting leachable materials from a hydratable polymer by incorporation of an adsorbent into the solution employed to effect extraction. Suitable adsorbents are characterized as having a higher affinity for the leachable materials than either the hydratable polymer or the solvent employed in the solution. Also disclosed are sealed packages comprising an aqueous solution, an adsorbent and a hydratable polymer in the form of an ophthalmic device.

Incorporation of adsorbents during extraction and/or hydration of

Incorporation of absorbents during extraction and/or hydration of

A method of fitting rigid gas permeable contact lenses comprising the steps of:

Rigid gas permeable lenses

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San Ramon, CA, United States of America

William E Meyers