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- The blind spot indicates the location of the optic nerve head—an area with no photoreceptors—in the temporal part of the visual field.
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What is a visual field test?
Look at the pattern. Look at the GHT, mean deviation, VFI, and pattern standard deviation. Compare to the previous visual fields. The visual field test is among the most important tests to learn to interpret as you begin your career in ophthalmology. Learn about the top 5 most common fields!
Oct 31, 2023 · A visual field test can help diagnose scotomas, or blind spots. It can also help identify loss of peripheral or side vision. Loss of side vision is an indicator of glaucoma, a disease that can lead to blindness. This article describes what to expect during a visual field test, why it's done, and what the results mean.
May 31, 2015 · 3. The blind spot indicates the location of the optic nerve head—an area with no photoreceptors—in the temporal part of the visual field. 4. Anything obstructing the travel of light towards the retina may affect the field tests, for example, lens opacity (cataract), ptosis (if not taped away from the pupil) or the rim of a correcting lens ...
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- Sui H Wong, Gordon T Plant
- 9
- 2015
The visual field index is a staging index designed to correspond to ganglion cell loss, that is, 100% represents normal fields and 0% represents blind fields. The mean deviation represents the degree of departure of the whole field's average values, from age-adjusted normal values.
- Sui H Wong, Gordon T Plant
- 2015
Feb 10, 2024 · The test is operator- and patient-dependent, and the results shouldn’t be considered in isolation, physicians say. Here, glaucoma experts review the strengths and weaknesses of visual field testing, as well as provide their tips on interpreting patients’ fields.
A visual field test is a way to measure what you can see above, below and all-around. Visual field tests are specifically used to detect areas of vision loss (blind spots). If you have previously had vision loss problems, these tests can also be used to monitor the progression.
Mar 7, 2020 · Fixation monitor: ‘Blind spot’. The machine works out where the person’s natural blind spot is and occasionally flashes a spot directly in it. If the patient is looking at the central fixation target (usually a steady central yellow light) they shouldn’t be able to see the flash in their natural blind spot.