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US 5,310,429 AGranted
Contact lens cleaning method
AssigneePolymer Technology Corporation
InventorsMaylee H. Chou, Edward J. Ellis
Life of this patent
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Abstract
A hard contact lens formed of a polymer having silicon and chlorine incorporated therein is exposed to a solution containing an admixture, an alkylphenyl polyether alcohol surfactant, a second surfactant which is anionic and a third surfactant having a preservative action and the solution is rubbed against the contact lens to remove surface deposits thereon.
Claims6
A method of cleaning a hard contact lens formed of a polymer having silicon and fluorine incorporated therein, after said lens has been used in the eye and has accumulated deposits from the eye,
- said method comprising,
- (a) exposing said contact lens to a solution containing in admixture, an alkylphenyl polyether alcohol surfactant, a second surfactant which is anionic, a third surfactant having a preservative action, a suspending agent;
- and
- (b) rubbing said solution against said contact lens to remove surface deposits.
1 more element
Dependencies are inferred from the claim text.