Ophthalmic and contact lens solutions containing forms of vitamin b
AssigneeBioConcept Laboratories
InventorFrancis Smith
Life of this patent
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Abstract
The present invention relates to improved ophthalmic solutions that employ select B vitamins; pyridoxine and its salts; and thiamine and its salts in order to more effectively preserve solutions and to reduce the degree to which cationic preservatives will deposit on contact lenses. Ophthalmic solutions are here understood to include contact lens treatment solutions, such as cleaners, soaking solutions, conditioning solutions and lens storage solutions, as well as wetting solutions and in-eye solutions for treatment of eye conditions.
Claims7
A contact lens solution comprising 0.001 to 10 weight percent or a preservative enhancer chosen from the group consisting of thiamine (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), pyridoxine (B6), and cobalamin (B12);
- and at least 0.0001 weight percent of a cationic polymeric preservative and a concentration of 0.2 or less percent chloride.
Dependencies are inferred from the claim text.