Cleaning agents for contact lenses

Details Cleaning agents for contact lenses Cleaning agents for contact lenses

1977-03-28

1978-11-21

Herbert, Jr., Thomas J.

Compositions

Fluent dielectric

N-containing

134 40, 134 42, 252544, 252548, 424326, C11D 138, C11D 320, C11D 326, C11D 337

Patent

active

041265874

ABSTRACT:
Method and compositions are provided for the effective cleaning of soft and silicone contact lenses by soaking the lenses for a time sufficient to remove adherent residues in a solution containing an epoxy modified silicone surfactant and a fatty acid amide (or nitrogen analog thereof) surfactant, which may be cationic or non-ionic. Other additives may also be included such as thickening agents, bactericides, salts, anionic surfactants, and the like. The compositions are found to be particularly effective in removing strongly adhering proteinaceous matter, as well as lipids and polysaccharides.
By employing a particular combination of surfactants, soft contact lenses can be freed of impurities and adhering matter introduced during manufacture of the lens, while the lens is being hydrated. The lens is soaked under moderate conditions in an aqueous saline bath with a combination of a zwitterion surfactant and a fatty acid amide surfactant.

REFERENCES:
patent: 2586496 (1952-02-01), Young et al.
patent: 2834748 (1958-05-01), Bailey et al.
patent: 3689673 (1972-09-01), Phares

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