An increase in the base curve radius results in a sagittal height that is:

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Multiple Choice

An increase in the base curve radius results in a sagittal height that is:

Explanation:
Sagittal height measures how much the lens surface rises above the cornea for a given lens diameter. For a fixed diameter, a steeper base curve (smaller radius) makes the lens bow more, increasing sagittal height. Conversely, increasing the base curve radius flattens the lens, so the sagittal height decreases. This relationship is purely geometric and does not depend on the lens material. So, raising the base curve radius leads to a decrease in sagittal height.

Sagittal height measures how much the lens surface rises above the cornea for a given lens diameter. For a fixed diameter, a steeper base curve (smaller radius) makes the lens bow more, increasing sagittal height. Conversely, increasing the base curve radius flattens the lens, so the sagittal height decreases. This relationship is purely geometric and does not depend on the lens material. So, raising the base curve radius leads to a decrease in sagittal height.

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