One-step contact lens sterilization process

Details One-step contact lens sterilization process One-step contact lens sterilization process

1994-05-05

1994-11-22

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Using disinfecting or sterilizing substance

514840, 210668, A61L 218, C02F 142, B01J 3924

Patent

active

053666941

ABSTRACT:
A one-step process for sterilizing a contact lens using an aqueous solution of a sterilant which may be a peroxygen disinfectant, an inorganic hypochlorite compound or a hypochlorite precursor compound. The process involves the step of contacting the lens with a solution containing a sterilant (e.g. hydrogen peroxide, sodium hypochlorite, etc.) and activated carbon for a period of time to effect sterilization of the lens and to decompose substantially all of any sterilant remaining after sterilization of the lens to ophthalmologically innocuous by-products. The activated carbon has a surface area in excess of about 500 m.sup.2 /g and a pore volume of at least about 0.75 ml/g.

REFERENCES:
patent: 4976921 (1990-12-01), Itagaki et al.
patent: 5312586 (1994-05-01), Stockel

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