Disinfecting and preserving solutions for contact lenses and...

Details Disinfecting and preserving solutions for contact lenses and... Disinfecting and preserving solutions for contact lenses and...

A - Human Necessities

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134/6

A61L 2/18 (2006.01) A01N 47/44 (2006.01) A61L 12/14 (2006.01) C11D 3/00 (2006.01) C11D 3/37 (2006.01) C11D 3/48 (2006.01)

Patent

CA 1259542

ABSTRACT OF THE DISCLOSURE Aqueous isotonic solutions comprising a biguanide or water-soluble salt thereof having the formula: Image wherein n is from 1 to 500 and a buffer are effective dis- infectants 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 dis- infectant on soft contact lens surfaces, the potential for eye tissue irritation/inflammation is unusually low.

489522

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