Front toric lenses will have how many base curves?

Explore the Gas Permeable Contact Lenses Test. Dive into lens anatomy, verification, and selection. Study multiple-choice questions and access detailed explanations. Gear up for success!

Multiple Choice

Front toric lenses will have how many base curves?

Explanation:
Base curve is the curvature of the lens’s back surface. For a front toric lens, the astigmatism correction is on the front surface, while the back surface remains spherical, meaning there is a single back curvature. A two-base-curve design would be used if both surfaces were toric (a bitoric design), which isn’t the case here. So, front toric lenses have one base curve.

Base curve is the curvature of the lens’s back surface. For a front toric lens, the astigmatism correction is on the front surface, while the back surface remains spherical, meaning there is a single back curvature. A two-base-curve design would be used if both surfaces were toric (a bitoric design), which isn’t the case here. So, front toric lenses have one base curve.

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