Patent ID: 7550418

Claim:
An aqueous contact lens disinfecting solution, comprising: (a) less than 0.5 ppm PHMB; (b) 0.01% to 0.1% dexpanthenol; (c) 0.001% to 0.5% polyoxyethylene-polyoxypropylene block polymer; (d) 0.001% to 0.5% ethoxylated glucose derivative; (e) bis-TRIS-propane buffer; (f) 0.1% to 0.3% viscosity enhancing agent; (g) less than 0.2% chelating agent; and (h) at least 4% of a tonicity agent selected from the group consisting of glycerol, urea, propylene glycol, sodium bicarbonate, sugars, alcohols, polyols, and mixtures thereof; wherein said solution has a tonicity of 200 to 450 mOsm/kg, a pH of between 6 and 8, and a concentration of chloride ions below 500 ppm; and wherein said solution will result in at least a 1 log reduction in C. albicans within 15 minutes of contact.