Silicone contact lenses with wrinkled surface

US7625598B2 · kind B2 · utility

Assignee

• BAUSCH & LOMB INCORPORATED · US

Inventors

• Ravi Sharma · Fairport, US
• Robert M. Braun · Pförring, DE
• Daniel Ammon · Webster, US
• Jay F. Kunzler · Canandaigua, US
• Yu-Chin Lai · Pittsford, US

Key dates

• Filing date: Dec 15, 2006
• Grant date: Dec 1, 2009
• Expiry date: Jan 31, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2383/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

At least one of the surfaces of a silicone contact lens is a wrinkled surface, providing the contact lens surface with a desired topography. The wrinkled surface may include random ridges, either over the entire surface of the lens, or in a desired pattern on the surface of the lens.