METHODS AND KITS FOR EXTENDING CONTACT LENS USE

摘要

Provided are method and kits useful for extending the wear-time of a contact lens. The method includes applying an amount of an ophthalmically acceptable solution to the contact lens to improve the comfort of the eye when the contact lens is in the eye. The solution includes an aqueous suspension and chitosan. The aqueous suspension includes about 0.1% to about 6.5% by weight of a carboxyl-containing polymer prepared by polymerizing one or more carboxyl-containing monoethylenically unsaturated monomers and less than about 5% by weight of a cross-linking agent. Upon contact with tear fluid, the solution gels to a second viscosity which is greater than the first viscosity. The kit includes contact lenses, an ophthalmically acceptable solution and instructions for applying the solution to improve the comfort of the eye when the contact lens is in the eye.