Question:
I have glaucoma and had an annual field vision test. Test results are shown in graphical form and have a number associated with the results. In 2006 the number was 2.xx this year it is up to 6.02. It goes up each year. What is the numerical range and what is a bad number? Answer:
There are many indices on the visual field report that can be used to assess the reliability of the test as well as any abnormalities or changes in the visual field over time. Each of these indices can provide valuable information but must be evaluated in the context of the entire test and other reported indices, not in isolation. Therefore, it isn’t possible to interpret the significance of a single number from the visual field test. In addition, the visual field test itself must be viewed in the context of other parts of the eye examination for glaucoma, including the eye pressure and the appearance of the optic nerve. Your Eye M.D. is the individual who is best able to interpret the results of the visual field test for you and what it may mean, given the other findings important in the evaluation of a patient with glaucoma.
Answered by:
Louis B. Cantor, MD
Categories:
Eye Conditions; Eye Diseases
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