Disinfection of contact lenses

Details Disinfection of contact lenses Disinfection of contact lenses

1984-11-21

1986-02-04

Cintins, Ivars

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Using disinfecting or sterilizing substance

134143, 206 51, 422301, 2521882, 25218821, 424 31, A61L 2118

Patent

active

045685177

ABSTRACT:
A contact lens is disinfected in an aqueous H.sub.2 O.sub.2 solution. The H.sub.2 O.sub.2 solution is neutralized and transformed in situ into a buffered, saline storage solution by adding a neutralizer such as sodium sulfite or sodium thiosulfate, and optional buffering agents. The neutralizer has a coating which dissolves to release the ingredients only a period of time after it is added, so that it can be put into the H.sub.2 O.sub.2 solution at the same time that the lens is.

REFERENCES:
patent: 3538214 (1970-11-01), Polli et al.
patent: 3623492 (1971-11-01), Frantz et al.
patent: 3829329 (1974-08-01), O'Driscoll et al.
patent: 3908680 (1975-09-01), Krezanoski
patent: 3912451 (1975-10-01), Gaglia
patent: 4013410 (1977-03-01), Thomas et al.
patent: 4179497 (1979-12-01), Cohen et al.
patent: 4429786 (1984-02-01), Hucal
Gasset, A. R., et al., "Hydrogen Peroxide Sterilization of Hydrophilic Contact Lenses", Arch. Ophthalmol., vol. 93, pp. 412-415 (Jun. 1975).

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