Certified Paraoptometric (CPO) Practice Exam 2025

Question: 1 / 420

What does the Cover/Uncover test primarily evaluate?

Visual acuity

Refractive power

Binocular vision

The Cover/Uncover test is primarily used to evaluate binocular vision, which is the ability of both eyes to work together and focus on an object simultaneously. This test helps to assess any misalignment or strabismus present, as well as how the eyes coordinate when focusing on a point. By covering one eye and observing the uncovered eye's movement, the practitioner can gain insight into how well the eyes are aligned and functioning together.

Visual acuity measures sharpness of vision and is assessed using eye charts, while refractive power relates to how the eye bends light for proper focus, typically determined through refraction tests. Corneal curvature is evaluated through specific measurements and instruments that assess the shape of the cornea, which is not directly related to the Cover/Uncover test.

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Corneal curvature

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