Method for cleaning a contact lens

Details Method for cleaning a contact lens Method for cleaning a contact lens

1992-10-20

1994-05-24

Wityshyn, Michael G.

Chemistry: molecular biology and microbiology

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

Cleaning using a micro-organism or enzyme

25217412, 252 80, 252 82, D06M 1600, C02F 500, C11D 300

Patent

active

053148231

ABSTRACT:
A method for cleaning a contact lens, which comprises diluting an enzyme-containing aqueous solution containing an effective amount of serine protease and from 30 to 95% by weight of glycerol with a diluting solution containing from 0.05 to 5% by weight of an anionic surfactant having no polyoxyethylene glycol unit and from 0.005 to 0.1% by weight of ethylenediamine tetraacetate to a glycerol concentration of not higher than 5% by weight, to obtain a treating solution, and immersing a contact lens in the treating solution.

REFERENCES:
patent: 3910296 (1975-10-01), Karageozian et al.
patent: 4096870 (1978-06-01), Manfuso
patent: 4865983 (1989-12-01), Durham
Hioki, S. Abstract of Japanese Unexamined Patent Application 62-70812, published Mar. 1, 1987.
Nakagawa, A. et al. Abstract of Japanese Unexamined Patent Application 04-51015, published Feb. 19, 1992.
Nakagawa, et al. Chemical Abstract CA118(14):127013s of EP 508381A2, published Oct. 14, 1992.
ICLC, vol. 15, pp. 256-259, 1988, D. Dea, et al., "The Effect of Reducing Agents On Enzymatic Cleaning Efficacy".

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