Soft contact lens cold disinfectant solution

Claim 1

A sterile, aqueous composition consisting essentially of water, from about 0.1% to about 8.6% by weight of said total aqueous composition of a polyoxypropylene-polyoxyethylene block copolymer having a molecular weight of about 1,100 to about 14,000, a water solubility in excess of about 10 grams per 100 milliliters, a cloud point in 1% aqueous solution above about 32° C. and a foam height in excess of about 32 millimeters, from about 0.05% to about 0.45% by weight of said total aqueous composition of an alkylphenoxy polyethoxy ethanol octylphenol that is a physiologically acceptable non-ionic surface acting agent having a water solubility in excess of about 1 milliliter per 100 milliliters, a cloud point in 1% aqueous solution of from about 65° C. to about 100° C. and a foam height in excess of about 25 millimeters, from about 0.1% to about 10% ascorbic acid by weight of the total aqueous composition, from about 0.001% to about 0.006% Thimerosal by weight of the total aqueous composition, from about 0.2% to about 2.5% propylene glycol by weight of the total aqueous composition, a salt of ethylenediaminetetraacetic acid suitable for use as a preservative and buffer and present in an amount to maintain the pH of the aqueous composition in a range of between about 4.0 and 7.0, which composition disinfects soft and semi-hard contact lenses within four hours, is compatible with soft and semi-hard lenses to allow storage therein and is suitable for cleaning soft and semi-hard contact lenses.