Economically optimized lens cleaning and stripping system

A single-pass process for cleaning a hard-coated ophthalmic lens and stripping at least a portion of the hard-coated ophthalmic lens, the process comprising the steps of:

• treating by submerging the hard-coated ophthalmic lens with a cleaning solution to produce a cleaned hard-coated ophthalmic lens, said cleaning composition comprising:
• 10 wt. % to 40 wt. % of an organic solvent;
• 1 wt. % to 20 wt. % of an alkaline component comprising sodium hydroxide and/or potassium hydroxide;
• 0.5 wt. % to 3 wt. % of a surfactant comprising alkyl polyglucoside;
• and
• a balance of water;
• treating by submerging the cleaned hard-coated ophthalmic lens with an alkaline solution to produce an alkaline-treated hard-coated ophthalmic lens;
• and
• treating by submerging the alkaline-treated hard-coated ophthalmic lens with a stripping solution to strip at least a portion of the hard-coat from the alkaline-treated hard-coated ophthalmic lens to produce a cleaned and stripped ophthalmic lens, said stripping composition comprising:
• 10 wt. % to 40 wt. % of an organic solvent;
• 1 wt. % to 20 wt. % of an alkaline component which is sodium hydroxide and/or potassium hydroxide;
• 0.5 wt. % to 6 wt. % of a surfactant comprising alkyl polyglucoside;
• and
• a balance of water;
• wherein each of the treating steps is independently performed at a temperature that is at least 10° C. greater than ambient temperature, and wherein ultrasonic power is transmitted to the ophthalmic lens during all of the treating steps with a frequency of about 25% to 45% of a full scale frequency level of 33 Mhz, and a duration of each treating step is in a range of 1 to 8 minutes.