OPHTHALMIC COMPOSITIONS AND METHODS FOR TREATING EYES

摘要

Ophthalmic solutions are provided for use as tear substitutes and contact lens solutions. These solutions contain a cationic polymeric surfactant that has an affinity for the surface of the eye or a contact lens. Also disclosed are ophthalmic solutions containing a combination of the cationic polymeric surfactant and a water soluble anionic polymer which forms a complex in aqueous solution. The complex has an affinity for the surface of the eye or contact lens. In this manner, the present solutions provide improved duration of comfort to the user. The present compositions are also useful as carriers for ophthalmic drugs.