Method for rendering a contact lens wettable
AssigneeFXS Ventures, LLC
InventorsFrancis X Smith, John Randall Tracey
Life of this patent
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Abstract
An ophthalmic solution comprising a polyethoxylated glyceride in the range of 0.001 to about 10 percent by weight and a buffer agent. These solutions impart surprising comfort and wearability to contact lenses. At the same time the solutions provide good preservative capacity and do not increase protein deposit.
Claims31
A method for rendering a contact lens wettable by contacting the surface of said lens with an aqueous solution comprising from 0.001 to about 10 percent by weight of an ethoxylated glyceride, 0.001 to 2.0 percent by weight of a physiologically acceptable buffer selected from the group consisting of creatine, its salts, dimethyl aspartic acid and its salts, 0.00001 to 0.1 weight percent of a polymeric preservative, and the balance water.
Dependencies are inferred from the claim text.