The eye’s visual field is the entire area that can be seen while looking at a specific point, from the center to the far periphery in all directions. Certain diseases- particularly glaucoma, retinal disease, and neurologic disorders- can cause loss of certain parts of the visual field, typically in patterns fairly specific to the type of disease. Testing the eyes’ visual fields can therefore provide very useful information towards diagnosing or monitoring treatment of numerous conditions.
Visual field testing is conducted in the office using the Humphrey® Field Analyzer/HFA II-i, a computerized device capable of performing accurate, relatively quick exams. The testing procedure is as follows: