Perimetry, or Visual Field analysis, is another method of evaluating a patient’s visual function. This diagnostic procedure provides a map which measures a person’s visual field, or exactly what amount of space that a person can see when they hold a fixed gaze in a particular direction. There are several types of testing used for visual field analysis.
Some of these are performed manually by a trained professional, and are conducted on a computer. All of these methods can be effectively used to diagnose limitations within the visual field.
The VF exam generally takes about 7-15 minutes to perform.
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