Why is a visual field test important?
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The value of visual field testing for glaucoma is twofold.
- First, the test may reveal subtle damage to vision and thus confirm the first diagnosis of glaucoma.
- Second, the examination provides a baseline to help determine whether or not the pressure control is adequate.
A deterioration in visual field, in combination with other findings, may mean more medication or surgery is necessary.
Last reviewed on April 19, 2011