More deposits and poor surface wettability lead to comfort/discomfort with contact lenses.

More deposits and poor surface wettability lead to comfort/discomfort with contact lenses.

• A. Comfort
• B. Discomfort
• C. No change
• D. Enhanced wear time

Answer: (B)

Deposits on the lens surface and poor surface wettability reduce comfort by destabilizing the tear film and increasing friction during blinking. When deposits accumulate, they roughen the lens surface and can trap debris, leading to a gritty, irritated sensation and dryness as the eyelid rubs against the irregular surface. Poor wettability means tears don’t spread evenly across the lens, so the tear film breaks into droplets rather than forming a smooth lubricating layer. That instability and reduced lubrication heighten friction with each blink, causing discomfort. This is why the outcome is discomfort rather than comfort, no change, or enhanced wear time—the combination typically decreases comfort and can shorten how long someone is comfortable wearing the lenses.

Deposits on the lens surface and poor surface wettability reduce comfort by destabilizing the tear film and increasing friction during blinking. When deposits accumulate, they roughen the lens surface and can trap debris, leading to a gritty, irritated sensation and dryness as the eyelid rubs against the irregular surface. Poor wettability means tears don’t spread evenly across the lens, so the tear film breaks into droplets rather than forming a smooth lubricating layer. That instability and reduced lubrication heighten friction with each blink, causing discomfort. This is why the outcome is discomfort rather than comfort, no change, or enhanced wear time—the combination typically decreases comfort and can shorten how long someone is comfortable wearing the lenses.