Non-abrasive surfactants/cleaners can remove which deposits?

• A. Mucoprotein, lipid, debris
• B. Only mucoprotein
• C. Lipid only
• D. Debris only

Answer: (A)

Non-abrasive surfactants remove all three common tear-film and environmental deposits from gas-permeable lenses by lowering surface tension and forming micelles that emulsify and lift deposits off the lens surface for rinsing. Tears contribute mucoprotein deposits (protein/mucin complexes) that adhere to the lens, the tear film contains lipids from the meibomian glands that can coat the surface, and debris such as dust or shed cells can accumulate as well. A cleaner that can address proteins, lipids, and debris provides comprehensive cleaning, whereas targeting only one type leaves others behind. This broad effectiveness is why the all-inclusive option is the best choice, and non-abrasive cleaners are preferred to protect the lens surface while removing these deposits.