Certified Paraoptometric (CPO) Practice Exam 2025

Question: 1 / 420

What does a visual field test determine?

The color perception of the eye

The sharpness of vision

The area of space visible to the eye

A visual field test measures the area of space that a person can see while focusing on a central point. This assessment is crucial for detecting blind spots or any peripheral vision loss, which can indicate various eye conditions or neurological issues. By determining how much of the surrounding area can be seen without movement or eye shifting, the test provides valuable information about the health of the retina, optic nerve, and visual pathways in the brain.

Understanding the visual field is essential for diagnosing conditions such as glaucoma, retinal diseases, and certain neurological disorders. This test can identify subtle changes in vision that might not be noticeable in a standard eye exam, making it a key component in comprehensive eye care.

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The depth perception capability

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