Sterilizing hydrophilic contact lenses

摘要

A sterilizing solution for contact lenses particularly those formed of a hydrophilic polymer comprises (a) an alkali metal salt of formic acid, and (b) an iodophor selected from the group consisting of complexes of iodine with hydrophilic polymer and non-ionic surface active agent. The alkali metal salt and the iodophor are present in predetermined quantities such that the sterilizing solution contains sufficient alkali metal salt to reduce the available iodine level of the sterilizing solution to substantially zero within a period of from 30 minutes to 8 hours at a temperature of from 20 DEG to 25 DEG C. The iodophor and the alkali metal salt of formic acid may be packaged in solid or powdered form, particularly in unit doses, and made into solution at the point of use.