ABO Practice Questions: Light, Lens Power and Lens Forms

ABO Chapter 1 practice set

Last reviewed: October 8, 2026

One question at a time, with an explanation that teaches the concept behind each answer. Topics covered: Ophthalmic Optics.

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These ten questions cover Ophthalmic Optics, the largest of the six ABO Basic domains. For a mixed set across all domains, try the ABO Basic practice test. For the official format, fees, and content areas, read the ABO certification guide.

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Not affiliated with or endorsed by ABO-NCLE, IJCAHPO, or any state board. Not medical advice. Practice questions are original and don't guarantee a passing score. Verify current requirements with the official source. Read the full disclaimer.

ABO Chapter 1: Light, lens power and lens forms

ABO Chapter 1 practice set