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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!
The point where your optic nerves converge to exit the eye and into the brain is known as the optic disc. This area of the eye has no light-sensitive cells to detect light rays. This results in a break in the visual field known as your “blind spot.” When the cross mark disappears, you instead “see” a continuous white field.
The blind spot indicates the location of the optic nerve head—an area with no photoreceptors—in the temporal part of the visual field. 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 (test ...
- Sui H Wong, Gordon T Plant
- 2015
3 days ago · 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 7, 2020 · This guide provides a step-by-step approach to assessing a patient’s blind spot. It also includes a video demonstration. Download the blind spot assessment PDF checklist, or use our interactive checklist. You may also be interested in our complete guide to the examination of the eyes and assessment of vision.
- Dr Lewis Potter
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.
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.
