Contact lens disinfecting and preserving solution
AssigneeBausch & Lomb Incorporated
InventorsLawrence D. Mandt, Thomas M. Riedhammer, Francis X. Smith
Life of this patent
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Abstract
A disinfecting and/or preserving solution for contact lenses is disclosed. The solution is an aqueous solution containing 0.00001 to 0.1 weight percent of 1,5-pentanedial, optionally together with up to 0.004 weight percent of thimerosal or other enhancers and optional buffers and the like.
Claims3
A method for preserving or disinfecting soft contact lenses comprising contacting said lenses with an aqueous solution having as the active antimicrobial agent 1,5pentanedial present in an amount from about 0.00001 to about 0.1 weight percent of said composition, said composition being buffered for eye comfort (pH compatible) with at least one buffer in an amount from about 0.05 to 2.5 weight percent wherein the 1,5-pentanedial in the amount from about 0.00001 to about 0.01 weight percent is combined with from about 0.0001 to about 0.5 weight percent of an enhancing agent selected from the group consisting of thimerosal, phenylmercuric salts, sorbic acid, ethylene-diaminetetraacetic acid and its salts and mixtures thereof.
Dependencies are inferred from the claim text.