Certified Paraoptometric (CPO) Practice Exam 2025

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Certified Paraoptometric Exam with our comprehensive quiz featuring multiple-choice questions. Each question is accompanied by hints and explanations, helping you build your knowledge and confidence. Get ready to excel in your career!

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.


Keratometry measures what aspect of the eye?

  1. Binocular vision

  2. Curvature of the cornea

  3. Fine detail detection

  4. Retinal health

The correct answer is: Curvature of the cornea

Keratometry specifically assesses the curvature of the cornea, which is a vital measurement in optometry. This procedure involves using a keratometer to measure the radius of curvature of the anterior surface of the cornea. Understanding the curvature is essential for various reasons, such as determining the appropriate fitting parameters for contact lenses, diagnosing certain eye conditions, and planning for refractive surgeries like LASIK. By measuring the curvature, eye care professionals can gain insights into the cornea's shape, which plays a crucial role in overall vision quality, thus making this the correct answer.