Which of the following is a common fit issue indicating improper lens fit?

• A. Clear centration and stable vision
• B. Lens moves minimally
• C. Excessive lens movement
• D. Comfort remains good

Answer: (C)

Movement of the lens on the eye is a key indicator of soft contact lens fit. The goal is a lens that sits comfortably with a gentle amount of movement when you blink and remains well centered. When movement is excessive, the lens isn’t seated properly and shifts a lot with each blink. This loose fit can cause unstable vision, edge lifting, irritation, and poor tear exchange, signaling an improper fit. In contrast, a lens that maintains good centration with only a slight blink-induced movement suggests a proper fit, while very little movement can indicate a fit that’s too tight, which can also cause discomfort.