Our Visual field test Main Article provides a comprehensive look at the who, what, when and how of Visual field test

Definition of Visual field test

Eye Diseases and Conditions Slideshow

Visual field test: 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, overactivity of the thyroid gland (hyperthyroidism). Medications can also affect the visual field, including antimalaria medicines chloroquine/ATABRINE and hydroxychloroquine/PLAQUENIL.

Suggested Reading by Our Doctors

• Electroretinography - Read about electroretinography (ERG), an eye test where electrodes placed on the cornea measure electrical responses to light to try to detect abnormal retinal function.
• Glaucoma - Get information about glaucoma and its symptoms, signs, and causes. Learn about treatment, prevention, and research on the leading cause of blindness.
• Tonometry - Get the facts on tonometry, a method for measuring intraocular pressure (IOP) and detecting glaucoma. Learn how tonometry is performed and the equipment that's used during the procedure.

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