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What is a Visual Field Test?

visual field testThe Visual Field Test (VFT) is an optional addition to the pretest. The test costs $15 in addition to your regular eye exam. This test, though optional, is highly recommended, and helps screen for a number of eye-related issues.

To begin, you will sit down in front of a machine and focus on a small black square. While focusing on the square, you will be asked to press a button every time you see a flickering bar of light. This tests your peripheral (or “side”) vision, and can be used as an early indicator of several conditions including glaucoma, diabetic retinopathy, and macular degeneration.

The test won’t tell you if one of these conditions is present, but it will give the doctor the ability to combine the results with your medical history, results from the prescreen, and questions about your lifestyle to determine your risk for such conditions. Learn more about the other tests involved in your exam.

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