Wetting solutions for contact lenses

An aqueous contact lens wetting solution containing collagen in an amount within the range of 0.001% to 1% by weight, at least one other demulcent in addition to collagen, a buffering agent in an amount within the range of 0.05 to 2.5% by weight, a tonicity agent so that the osmotic pressure of the solution approximates normal lacrimal fluids, and a microbicidally effective amount of a germicide, the viscosity of the solution being less than 15 CPS at 25.degree. C.

An aqueous contact lens wetting solution containing collagen in an amount with the range of 0.001% to 1% by weight, at least one other demulcent in addition to collagen, a buffering agent in an amount within the range of 0.05 to 2.5% by weight, a tonicity agent so that the osmotic pressure of the solution approximates normal lacrimal fluids, a microbicidally effective amount of a germicide, and an effective amount of a sequestering agent, the viscosity of the solution being less than 15 CPS at 25.degree. C.

An aqueous contact lens wetting solution containing collagen in an amount within the range of 0.001% to 1% by weight, and boric acid and sodium borate as buffering agents, the amount of buffering agent being within the range of 0.05 to 2.5% by weight, the viscosity of the solution being less than 15 CPS at 25.degree. C.

An aqueous contact lens wetting solution containing collagen in an amount within the range of 0.001% to 1% by weight, boric acid and sodium borate as buffering agents, the amount of buffering agent being within the range of 0.05 to 2.5% by weight, sodium chloride and potassium chloride as tonicity agents so that the osmotic pressure of the solution approximates normal lacrimal fluids, and a microbicidally effective amount of a biguanide as a germicide, the viscosity of the solution being less than 15 CPS at 25.degree. C.

An aqueous contact lens wetting solution containing collagen in an amount within the range of 0.001% to 1% by weight, boric acid and sodium borate as buffering agents, the amount of buffering agent being within the range of 0.05 to 2.5% by weight, sodium chloride and potassium chloride as tonicity agents so that the osmotic pressure of the solution approximates normal lacrimal fluids, and a microbicidally effective amount of the hydrochloride salt of polyhexamethylene-biguanide as a germicide, and an effective amount of disodium edetate as a sequestering agent, the viscosity of the solution being less than 15 CPS at 25.degree. C.