LAB TEST
Visual field
The visual field refers to the total area in which objects can be seen in the side (peripheral) vision as you focus your eyes on a central point. This article describes the test that measures your visual field.
How the Test is Performed
Confrontation visual field exam. This is a quick and basic check of the visual field. The health care provider sits directly in front of you. You will cover one eye, and stare straight ahead with the other. You will be asked to tell when you can see the examiner's hand. Tangent screen or Goldmann field exam. You will…
How to Prepare for the Test
No special preparation is necessary.
How the Test will Feel
There is no discomfort with visual field testing.
Why the Test is Performed
This eye exam will show whether you have a loss of vision anywhere in your visual field. The pattern of vision loss will help your provider diagnose the cause.
Normal Results
The peripheral vision is normal.
What Abnormal Results Mean
Abnormal results may be due to diseases or central nervous system (CNS) disorders, such as tumors that damage or press on (compress) the parts of the brain that deal with vision. Other diseases that may affect the visual field of the eye include: Diabetes Glaucoma (increased eye pressure) High blood pressure…
Risks
The test has no risks.
References
Chuck RS, Dunn SP, Flaxel CJ; American Academy of Ophthalmology Preferred Practice Pattern Committee, et al. Comprehensive adult medical eye evaluation preferred practice pattern. Ophthalmology . 2021;128(1):1-29. doi.org/10.1016/j.ophtha.2020.10.024 . Published November 12, 2020. Idrees S, Sangave AA, Ramchandran RS.…
This is a summary. Read the full article at www.ucsfbenioffchildrens.org (reviewed 12/02/2023).
This page is general information and is not medical advice. It does not replace a registered doctor, and it is not a prescription or a recommendation to use any medicine or test. Prices are listed prices and may change. Always follow the advice of your doctor or pharmacist.