Reference Terms
from Wikipedia, the free encyclopedia

Visual field

The term visual field is often used in ophthalmology, where a visual field test is used to determine whether the visual field is affected by diseases that cause local scotoma or a more extensive loss of vision.

Note:   The above text is excerpted from the Wikipedia article "Visual field", which has been released under the GNU Free Documentation License.
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July 30, 2015

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updated 12:56 pm ET