Method for cleaning and disinfecting soft contact lens and treating solution for soft contact lenses

A method for cleaning and disinfecting a soft contact lens which comprises:

• immersing a soft contact lens in a treating solution which is an aqueous solution of an electrolyte, the concentration of said electrolyte being 0.001 to 0.5 mol/l and said electrolyte being at least one member selected from the group consisting of a boric acid salt buffer, a phosphoric acid salt buffer, a citric acid salt buffer, an oxalic acid salt buffer, a succinic acid salt buffer, a tartaric acid salt buffer, K.sub.2 CO.sub.3, Na.sub.2 CO.sub.3, NaHCO.sub.3, Na.sub.2 SO.sub.4 and sodium acetate and having a pH of 6 to 7.5;
• and
• applying a direct current of 0.1 to 5 A to the treating solution to raise the temperature of the treating solution to at least 80.degree. C. and to remove stains from the soft contact lens.