When the frame PD is larger than the patient's PD, the majority of lens thickness is typically located toward the:

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Prepare for the Shopko Optician Certification Test. Study with flashcards and multiple choice questions. Enhance your knowledge with detailed explanations and get ready to excel in your exam!

Multiple Choice

When the frame PD is larger than the patient's PD, the majority of lens thickness is typically located toward the:

Explanation:
When the frame PD is larger than the patient’s IPD, the optical centers in the lenses must be moved closer together to align with the eyes inside the frame. That horizontal decentration is toward the nose. For typical lens shapes, shifting the optical centers inward causes the edge thickness to increase on the opposite side—the temporal (temple) side. So, the majority of lens thickness ends up toward the temple side rather than the nasal, superior, or inferior areas.

When the frame PD is larger than the patient’s IPD, the optical centers in the lenses must be moved closer together to align with the eyes inside the frame. That horizontal decentration is toward the nose. For typical lens shapes, shifting the optical centers inward causes the edge thickness to increase on the opposite side—the temporal (temple) side. So, the majority of lens thickness ends up toward the temple side rather than the nasal, superior, or inferior areas.

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