Soft contact lens ambient temperature disinfectant solution containing ascorbic acid or salt thereof
AssigneeSherman Laboratories, Inc.
InventorGuy J. Sherman
Life of this patent
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Abstract
Aqueous compositions for the ambient temperature or cold disinfection of soft contact lenses during non-wearing periods is provided. The composition includes water and a disinfectant composition comprising an effective amount of an ascorbic acid compound for killing bacteria, generally between about 0.1% and 20% by weight of the total aqueous composition, calculated as ascorbic acid. The disinfectant composition may also include a potentiating agent to further enhance the kill factor of ascorbic acid with respect to fungi, yeasts and viruses.
Claims10
An aqueous composition which disinfects soft and semi-hard contact lenses at ambient temperature consisting essentially of:
- water, a first compound selected from the group consisting of ascorbic acid, sodium ascorbate, calcium ascorbate and mixtures thereof, said first component present in an amount of between about 0.1% and 20% by weight of said total aqueous composition calculated as ascorbic acid, and a second compound selected from the group consisting of trimethoprim and thimerosal, said second compound present in an amount of between about 0.0001% and 5.0% by weight of said total aqueous composition, said aqueous composition being compatible with soft contact lenses to allow storage of soft contact lenses therein.
Dependencies are inferred from the claim text.