Visual field tests

Also known as: Vision tests
Vision tests check many different functions of the eye. The tests measure your ability to see details at near and far distances, check for gaps or defects in your field of vision and evaluate your ability to see different colors.
 
Visual field tests are used to check for gaps in your side (peripheral) vision. Your complete visual field is the entire area seen when your gaze is fixed in one direction. The complete visual field is seen by both eyes at the same time, and it includes the central visual field—which detects the highest degree of detail—and the peripheral visual fields.