Certified Ophthalmic Assistant Practice Exam

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Study for the Certified Ophthalmic Assistant Exam. Prep with flashcards, multiple choice questions, and detailed explanations. Ace your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

The instrument that measures the power of the spectacle lens is the

Keratometer
Lensmeter
Phoropter
Retinoscope

The correct answer is: Lensmeter

The correct answer is B. Lensmeter. A lensmeter is used to measure the power of a spectacle lens. It is an essential tool in determining the prescription needed for a patient's eyeglasses. A. Keratometer measures the curvature of the cornea. C. Phoropter is used to determine the appropriate prescription for corrective lenses during a refraction test. D. Retinoscope is an instrument used to shine light into the eye to determine the refractive error of the eye.