Disinfection and cleaner of contact lenses

Details Disinfection and cleaner of contact lenses Disinfection and cleaner of contact lenses

1998-02-11

1999-07-06

Beisner, William H.

Chemistry: molecular biology and microbiology

Process of utilizing an enzyme or micro-organism to destroy...

Cleaning using a micro-organism or enzyme

510114, 422 28, 134901, C12S 900

Patent

active

059196980

ABSTRACT:
The present invention relates to a one-step method for disinfection and cleaning of contact lenses of the type using hydrogen peroxide as the disinfecting agent and a protease as the cleaning agent, comprising the following steps: a) disinfection of the contact lenses in an aqueous disinfecting solution comprising from 1 wt. % to 5 wt. % hydrogen peroxide at a pH not acceptable to the eyes, b) cleaning the contact lenses by subjecting the contact lenses to a protease being inactivated within a period of time at a pH level not acceptable to the eyes, c) neutralization of the hydrogen peroxide in the aqueous disinfecting solution with a microbial catalase being substantially active at pH 3.0 to 7.0, d) adjusting the pH in the aqueous disinfecting solution to a pH level acceptable to the eyes. Further, the invention relates to a tablet or capsule suitable for one-step disinfection and cleaning, a one-step disinfecting and cleaning system and further a one-step procedure for disinfection and cleaning contact lenses.

REFERENCES:
patent: 4670178 (1987-06-01), Huth et al.
patent: 4767559 (1988-08-01), Kruse et al.
patent: 5145644 (1992-09-01), Park et al.
patent: 5630884 (1997-05-01), Huth

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