Too large of a lens diameter causes a flat/steep lens. What are the results?

Too large of a lens diameter causes a flat/steep lens. What are the results?

• A. Flat
• B. Neutral
• C. Moderate
• D. Steep

Answer: (D)

A larger diameter changes how the lens sits on the eye by extending coverage toward the sclera, which increases sagittal depth and makes the peripheral edge interact more tightly with the scleral contour. That tighter edge contact and the greater overall curvature at the fitting area give the lens a steeper feel and appearance. So when the diameter is too large, the fit is described as steep rather than flat, neutral, or moderate.

A larger diameter changes how the lens sits on the eye by extending coverage toward the sclera, which increases sagittal depth and makes the peripheral edge interact more tightly with the scleral contour. That tighter edge contact and the greater overall curvature at the fitting area give the lens a steeper feel and appearance. So when the diameter is too large, the fit is described as steep rather than flat, neutral, or moderate.