Cleaning composition for contact lenses

Details Cleaning composition for contact lenses Cleaning composition for contact lenses

1979-04-16

1981-08-25

Caroff, Marc L.

Cleaning and liquid contact with solids

Processes

Using sequentially applied treating agents

134 28, 134 42, 252105, 25217412, 252523, 252525, 252541, 252544, 252DIG12, B08B 308

Patent

active

042857384

ABSTRACT:
Proteinaceous matter lodged on the surface of a contact lens is removed in a short period of time by immersion of the lens in an aqueous hypertonic composition containing urea or a salt of guanidine and a reducing agent such as a sulfite, a pyrosulfite, etc. The cleaning effect of the composition increases markedly by addition of a proteolytic enzyme even in an amount not effective when the enzyme is used in the absence of urea or a guanidine salt.

REFERENCES:
patent: 3149042 (1964-09-01), Habicht et al.
patent: 3627683 (1971-12-01), Adam et al.
patent: 3635797 (1972-01-01), Battistoni et al.
patent: 3741901 (1973-06-01), Ziffer
patent: 3908680 (1975-09-01), Krezanoski
patent: 3910296 (1975-10-01), Karageozian et al.
patent: 3954965 (1976-05-01), Boghosian et al.
patent: 4115292 (1978-09-01), Richardson et al.

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