초록 ▼

A method and composition for the effective cleaning and treatment of soft, high water content, contact lenses, particularly the non-aphakic lens approved for general extended use and the aphakic lenses approved for prescribed use as a method of visual correction for the aphake. The method comprises

A method and composition for the effective cleaning and treatment of soft, high water content, contact lenses, particularly the non-aphakic lens approved for general extended use and the aphakic lenses approved for prescribed use as a method of visual correction for the aphake. The method comprises immersing the lens in an aqueous solution which includes the protease, bromelain, as a principal ingredient and a further minor portion of carboxypeptidase enzyme, as the cleansing and treatment agent. The combination of bromelain and carboxypeptidase enzymatic agents produces surprisingly better cleansing results, in substantially shorter time, than either agent alone. The solution removes protein, mucin, lipid, calcium, mineral, and other physiologically encountered debris from the lens; and the lens so treated shows enhanced resistance to the accumulation of further deposits when subsequently worn by the patient.

대표청구항 ▼

The method of treating an extended wear contact lens by removing surface deposits and penetratingly adhering aggregations of physiologically encountered debris from said lens comprising: (a) soaking the lens in an aqueous solution which comprises a principal proportion of bromelain active enzyme and

The method of treating an extended wear contact lens by removing surface deposits and penetratingly adhering aggregations of physiologically encountered debris from said lens comprising: (a) soaking the lens in an aqueous solution which comprises a principal proportion of bromelain active enzyme and an additional proportion of carboxypeptidase active enzyme suspended in the same aqueous solution and controlling said soaking for a period of time sufficient for the removal of all of the debris from said lens; (b) rinsing said lens with a separate solution of distilled water; and (c) placing said lens in a normal saline solution; whereby, said lens becomes cleansed of said deposits and debris.