Definition of Test, visual field

Test, visual field: A test which measures the extent and distribution of the field of vision.

The visual field test may be done by a number of methods including what are termed confrontation, tangent screen exam and automated perimetry.

Although the test may seem tedious, it is not painful or uncomfortable.

Many diseases can adversely affect the visual fields including glaucoma, strokes, high blood pressure (hypertension), diabetes, multiple sclerosis, and overactivity of the thyroid gland (hyperthyroidism). Medications can also affect the visual fields, including antimalaria medicines such as chloroquine/ATABRINE and hydroxychloroquine/PLAQUENIL.


Last Editorial Review: 6/14/2012

Search MedTerms:


Back to MedTerms online medical dictionary A-Z List
Pill Identifier Tool

Need help identifying pills and medications?
Use the pill finder tool on RxList.