Patent ID: 8119112

Claim:
An aqueous contact lens cleaning and disinfecting solution composition comprising: 0.8 ppm to 1.6 ppm of poly(hexamethylene biguanide); 0.5 ppm to 2 ppm α-[4-tris(2-hydroxyethyl)-ammonium chloride-2-butenyl]poly[1-dimethyl ammonium chloride-2-butenyl]-ω-tris(2-hydroxyethyl)ammonium chloride; 0.005 wt. % to 0.015 wt. % hyaluronic acid; 0.01 wt. % to 0.6 wt. % of a sulfobetaine of general formula I wherein R 1 is a C 8 -C 16 alkyl optionally substituted with at least one hydroxyl; R 2 and R 3 are each methyl; and R 4 is a C 2 -C 4 alkylene optionally substituted with one hydroxyl; a boric acid/borate buffer; a nonionic surfactant selected from poloxamer, poloxamine or any combination thereof; and sodium chloride, potassium chloride or any combination thereof.