What is the proper technique to apply GP lens cleaners?

• A. Rub carefully for at least 20 seconds in the palm of the hand
• B. Soak without rubbing
• C. Rinse briefly
• D. Dry with towel

Answer: (A)

Cleaning GP lenses relies on mechanical scrubbing to remove deposits that soaking alone can’t fully clear. Rub the lens carefully for at least 20 seconds in the palm of your hand with fresh GP cleaning solution, making sure to cover both surfaces so debris is loosened from everywhere.

This friction is what dislodges protein and mineral buildup that can cling to the rigid surface. Soaking without rubbing won’t adequately remove those deposits, and rinsing briefly only washes away loose material without truly cleaning the surface. Drying with a towel is not appropriate; it can deposit fibers or introduce contamination and may risk damaging the lens.

After rubbing, rinse the lens well with clean solution to remove loosened material, then proceed with the recommended disinfection/storage steps.