Which statement best describes how wettability relates to comfort?

Which statement best describes how wettability relates to comfort?

• A. Wettability has no impact on comfort
• B. Wettability only affects tear production
• C. Wettability improves comfort
• D. Wettability worsens comfort

Answer: (C)

Wettability describes how well tears spread and adhere to the lens surface. When a lens has good wettability, the tear film forms a thin, even coating that stays in place between blinks, keeping the lens lubricated and reducing friction with the eyelids. This smooth lubrication lowers dryness and irritation, leading to greater comfort during wear. If wettability is poor, the tear film becomes uneven or breaks up, creating dry spots and more lid-lens friction, which reduces comfort. So the best description is that wettability improves comfort because it helps maintain a stable, well-lubricated tear film on the lens surface.

Wettability describes how well tears spread and adhere to the lens surface. When a lens has good wettability, the tear film forms a thin, even coating that stays in place between blinks, keeping the lens lubricated and reducing friction with the eyelids. This smooth lubrication lowers dryness and irritation, leading to greater comfort during wear. If wettability is poor, the tear film becomes uneven or breaks up, creating dry spots and more lid-lens friction, which reduces comfort. So the best description is that wettability improves comfort because it helps maintain a stable, well-lubricated tear film on the lens surface.