Certified Paraoptometric (CPO) Practice Exam 2025

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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!

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Which procedure measures the curvature of the cornea?

Keratometry
Tonometry
Biometry
Ophthalmoscopy

The correct answer is: Keratometry

Keratometry is the procedure specifically designed to measure the curvature of the cornea. This measurement is crucial for various aspects of eye care, including determining the appropriate fit for contact lenses, assessing the cornea's shape for surgical procedures like cataract surgery or refractive surgery, and monitoring changes in corneal curvature due to conditions such as keratoconus. By evaluating the curvature, practitioners can gain insights into the overall health of the cornea and the patient's visual status. The other procedures serve different purposes: tonometry measures intraocular pressure, biometry involves assessing the eye's dimensions for surgical planning, and ophthalmoscopy allows for examining the internal structures of the eye, including the retina and optic nerve, but does not measure corneal curvature.