Improved disinfecting and preserving solutions for contact lenses and methods of use.

摘要

Aqueous isotonic solutions comprising a biguanide or water-soluble salt thereof having the formula: <CHEM> wherein n is from 1 to 500 and a buffer are effective disinfectants and/or preservatives for contact lenses. The solutions have a very low order of toxicity, and because there is little, if any, binding or concentrating of the disinfectant on soft contact lens surfaces, the potential for eye tissue irritation/inflammation is unusually low.