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Validated by more than 30 years of research, design and clinical experience, the Humphrey Visual Field is the accepted standard of care in glaucoma diagnosis and management. The automated perimetry test uses a computer program to test an individual’s field of vision. It measures areas or patterns of vision loss that may be the result of many different diseases like glaucoma, macular degeneration, multiple sclerosis, stroke, brain tumor, high blood pressure, etc.