Which feature is associated with a steep GP lens fit?

• A. Central pooling
• B. Central touch
• C. Central alignment
• D. Adequate edge clearance

Answer: (A)

GP lens fit patterns are read from fluorescein patterns to show how the lens sits on the cornea. A steep fit means the lens curvature is tighter than the cornea, which tends to push the lens into a position where the center sits slightly away from the cornea, creating a tear-filled space in the center. That central tear reservoir shows up as central pooling under the lens. In practice, central pooling signals that the lens is too steep for the eye and may need flattening (a lower sagittal height) to bring the center into better contact. Central touch would mean the center is bearing on the cornea, central alignment implies balanced contact across the central zone, and adequate edge clearance relates to how the lens sits at the periphery rather than centrally.