Visual field tests, also known as perimetry tests, are used to assess progression of ophthalmic diseases such as retinitis pigmentosa (RP) by monitoring changes in a patient's visual field (VF). VF loss corresponds to damage at any point in the visual pathway, including the retina, such as in RP. Damage to different parts of this pathway corresponds to characteristic VF defects. Perimetry tests are subjective, as they are functional tests that help physicians identify abnormal fields as well as quantitatively assess VF sensitivity. The results may also be informative of a patient's visual function crucial for performing day-to-day activities. Automated perimetry tests are among the most commonly used, with the most common being automated static perimetry.
Keywords: Interpreting visual fields; Perimetry; Retinitis pigmentosa; Scotoma; Visual field.
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