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- A visual field test measures your peripheral vision, or how well you can see above, below and to the sides of something you’re looking at. It’s also called a perimetry test. Visual field testing is important for many conditions, including glaucoma.
my.clevelandclinic.org/health/diagnostics/14420-visual-field-testVisual Field Test: What It Is & How To Prepare - Cleveland Clinic
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A visual field test is a simple test which measures your peripheral vision and all-around vision. The visual field machine will complete an analysis of the responses given during the test and collate these results in a visual plot field.
- Nonspecific / low Reliability / inattention / patient hungry. For every interpretable, reliable visual field you get, you will also get another in which the patient thinks he should be scanning the dome for lights the whole time, is poorly positioned, is exhausted from waiting in your clinic for hours, or is too elderly and arthritic to push the button in time.
- Superior / inferior arcuate defect. The most common early to mid stage glaucomatous field. The reason these look like arcs and come off the blind spot is that they represent the loss of bundles of nerves as they come out of the optic nerve head.
- Blind spot enlargement. This can be seen in glaucoma, but also can occur with papilledema and optic nerve head swelling. This would likely be seen in patients with idiopathic intracranial hypertension (aka pseudotumor cerebri).
- Severe constriction with a central island. Unfortunately, this is end stage glaucoma. At this point, many patients still have great central vision of 20/20 to 20/50, but peripheral vision is nearly gone.
A visual field test enables your eye doctor to measure the range of your peripheral vision, detect any abnormalities in your visual field, such as blind spots (scotoma), or vision loss that may have occurred over time.
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Apr 19, 2024 · Learn about the dos and don'ts of preparing for a visual field test. Find out what you should do before the test to ensure accurate results and what you should avoid to prevent any interference. This article provides valuable tips and guidelines to help you get ready for your visual field test.
Apr 4, 2023 · When you visit an optometrist or ophthalmologist, a visual field test is part of a routine eye exam. Visual field testing can help your eye care provider find early signs of diseases like glaucoma that gradually damage vision.
3 days ago · A visual field test is part of a comprehensive eye exam and part of a neurological examination. This non-invasive test examines your fields of vision, and it is important for identifying vision problems that could be signs of eye disease or conditions that affect the brain (like a stroke).
Apr 10, 2022 · It helps to set patients and test-givers up for success before the patient sits down to take the test: • Encourage new patients to practice for the test at home using visual field apps. “There are some new technologies that allow patients to do a visual field test at home,” notes Dr. De Moraes.
