The visual field test is a subjective measure of central and peripheral vision or side vision and is used by your doctor to diagnose, determine the severity of, and monitor your glaucoma. The most common visual field test treatment uses a light spot that is repeatedly presented in different areas of your peripheral vision. A visual field test is often given as part of an eye exam. Visual field testing helps your doctor to determine where your side vision begins and ends and how well you can see objects in your peripheral vision. Optometrists are independent, primary health care providers who examine, diagnose, treat, and manage diseases and disorders of the visual system, the eye and associated structures as well as diagnose related systemic conditions and therefore Optometrists are an integral part of the health care team. Visual field testing is most frequently used to detect any signs of glaucoma damage to the optic nerve. In addition, eye vision tests are useful for detection of central or peripheral retinal disease, eyelid conditions such as ptosis or drooping, optic nerve disease, and diseases affecting the visual pathways within the brain. The visual pathways carry information from the eye to the visual or occipital cortex in the brain, where this information is processed into vision. Thus testing peripheral vision is an eye examination that can detect dysfunction in central and peripheral vision, which may be caused by various medical conditions such as glaucoma, stroke, brain tumours or other neurological deficits.
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