Visual Field Tests


Lt Col Reynolds
Visual field tests help providers evaluate peripheral vision. The results of these tests are used to create a map of the patient’s peripheral vision. If a person isn’t able to see in certain areas, the provider uses the map to help diagnose their eye condition. Dr. Patel, can you tell us more about visual field tests?

Dr. Patel
Absolutely, Dr. Reynolds. There are several different types of visual field tests, including automated perimetry and confrontation visual field exams.

The automated perimetry test uses a computer that flashes small lights throughout the patient’s field of vision. While focusing on a specific point, the patient is asked to press a button every time they see a flash of light. This is one of the most common techniques used to measure visual fields.

When conducting a confrontation visual field exam, the provider sits in front of the patient and asks them to cover one eye while looking directly ahead. The provider then moves their hand in and out of the person’s visual field, asking them to comment when the hand is visible.