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A member asked:
What method is a visual field examination for an eye is conducted?
A doctor has provided 1 answer
Several devices: The basic instrument is called a perimeter. An array of LEDs in a dome are presented and the subject presses a signal button to register when seen. This produces a grey scale map of the visual sensitivity. Another device presents a dot of light of varying size and intensity also identified by the subject which can be then mapped out as the field. These are painless and sometimes fun tests.
Answered 1/11/2015
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