Patent Number: 6,309,658

Title: Treatment of contact lenses with aqueous solution comprising a carbonate salt for enhanced cleaning

Abstract: The present invention provides methods and compositions for cleaning and disinfecting contact lenses, which compositions comprise a carbonate or bicarbonate salt, a non-carbonate buffer system, an antimicrobial agent, and a non-ionic surfactant. Products according to the present invention, especially multi-purpose solutions, provide simultaneous disinfection and cleaning of contact lenses including the prevention or removal of protein and lipid deposits and other debris.

Inventors: Xia; Erning (Penfield, NY), Simpson; Lisa C. (Rochester, NY), Denick, Jr.; John (Pittsford, NY)

Assignee: Bausch & Lomb Incorporated

International Classification: A61L 12/14 (20060101); A61L 12/00 (20060101); A01N 025/00 (); A61K 009/00 (); A61K 031/155 ()

Expiration Date: 10/30/2018