When measuring the power of a toric GP lens, all toric lenses will have ______ powers.

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

When measuring the power of a toric GP lens, all toric lenses will have ______ powers.

Torics correct astigmatism by adding cylindrical power to a spherical base, so there are two principal powers. A toric GP lens has different curvature in two meridians—the flat and the steep—giving two distinct powers that show up when you measure across the lens. One power would only happen with a spherical lens, and more than two powers isn’t how standard toric GP lenses are designed. The two powers remain the same in principle; rotation just changes which meridians align with the eye, not the number of powers.

When measuring the power of a toric GP lens, all toric lenses will have ______ powers.

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!

When measuring the power of a toric GP lens, all toric lenses will have ______ powers.

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