![]() ![]() ![]() Since the test is subjective, results can be swayed if the patient is tired or missed any instructions. Your optometrist may have you repeat the test more than once at relatively close intervals, like appointments only months apart. If anything about your part in the test is unclear to you, be sure to ask your eye care team questions. The most commonly used tests need your input about your vision in order to build a map of your peripheral vision. Many visual field tests rely on you accurately reporting your visual experiences during the exam. Any places where the grid lines appear wavy, blurred, or absent can indicate a vision problem. Looking at this grid can help determine any issues with the central visual field. The Amsler grid consists of a simple black and white grid pattern with a dot in the center. The map built of the peripheral vision from these clicks helps your optometrist understand your peripheral vision and detect any problems in your visual field. Whenever you see a light, you’ll click a button. The forehead and chin rest against a dome-shaped instrument, and while looking at a precise spot, flashes of light will appear in your peripheral vision. ![]() The automated perimetry test is a computerized test. Pictures will appear on the edges of your peripheral vision, and your eye doctor can build a map of your visual field based on which images you see. You will be seated 3 feet away from the computer, looking at a central spot and not moving your eyes. The Goldmann field exam, also called a tangent screen exam, is done on a computer. This very basic and simple test doesn’t require any specialized equipment, yet is an effective way to determine if there are any blind spots in the peripheral vision. As you watch, you’ll let them know if the object disappears or becomes difficult to see. Your doctor will hold an object, picture, or even their fingers in your side vision. Types of Visual Field Tests Confrontational Visual Field TestingĬonfrontational visual field testing involves your optometrist staying a few feet away from you while you remain in the same spot with one eye covered, looking straight ahead. The tests measure both how far you can see in your peripheral vision without looking from side to side, as well as the sensitivity of your peripheral vision. Visual field tests determine the scope of your visual field, as well as the quality of your vision across all areas of the visual field. This is commonly called your peripheral vision. It includes the things seen directly in the path of what you’re looking at (your central vision) as well as what can be seen all around that point-above, below, and off to the sides. Your visual field is the entire area you can see when looking at a single point. Book an appointment to map your visual field and in the meantime, read on to discover more about the types of visual field tests and the eye problems that can be detected. Your visual field holds clues to your overall vision health. We can run tests to help diagnose diabetic eye problems, glaucoma, and other eye diseases that may not have apparent symptoms. Our optometrists can determine so much more than your corrective lens prescription when you come in for an eye exam. ![]()
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