When a GP lens is steep, which base-curve adjustment is recommended?

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Prepare for the Gas Permeable Contact Lenses Test. Study with flashcards and practice multiple choice questions. Each question includes hints and explanations. Ace your exam!

Multiple Choice

When a GP lens is steep, which base-curve adjustment is recommended?

Explanation:
When a GP lens is steep, you flatten the base curve (increase the radius). A steeper lens has a tighter fit because its back curve is more curved (smaller radius), which increases bearing on the cornea. Flattening the base curve loosens this fit, reducing central bearing, improving movement and centration, and creating a more comfortable, stable wear. The other options would either tighten the lens further, leave the fit unchanged, or aren’t relevant adjustments for a GP lens.

When a GP lens is steep, you flatten the base curve (increase the radius). A steeper lens has a tighter fit because its back curve is more curved (smaller radius), which increases bearing on the cornea. Flattening the base curve loosens this fit, reducing central bearing, improving movement and centration, and creating a more comfortable, stable wear. The other options would either tighten the lens further, leave the fit unchanged, or aren’t relevant adjustments for a GP lens.

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