If there is an increase in the radius of base curve, the contact lens will be flatter/steeper.

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Multiple Choice

If there is an increase in the radius of base curve, the contact lens will be flatter/steeper.

Explanation:
Increasing the base curve radius makes the back surface of the lens less curved, which means the lens becomes flatter. The radius and curvature are inversely related: as the radius gets larger, the curvature decreases. Clinically, a flatter base curve (larger radius) often sits more loosely on the cornea and can move more, whereas a steeper base curve (smaller radius) hugs the cornea more tightly. So, when the radius of the base curve increases, the lens is flatter.

Increasing the base curve radius makes the back surface of the lens less curved, which means the lens becomes flatter. The radius and curvature are inversely related: as the radius gets larger, the curvature decreases. Clinically, a flatter base curve (larger radius) often sits more loosely on the cornea and can move more, whereas a steeper base curve (smaller radius) hugs the cornea more tightly. So, when the radius of the base curve increases, the lens is flatter.

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