Do not study the chart before the test.
Cover your right eye and observe the grid in the same manner with your left eye as you did with your right eye.While watching the dot, you are judging whether the vertical and horizontal lines are straight and even or whether they appear to be curved, distorted, or missing. Concentrate on the dot in the center of the chart, being aware of the vertical and horizontal lines around the dot, even though you are not moving your gaze away from the dot. Move the chart closer toward you and further from you until the lines are clearest.) (Approximately 14 inches is a good starting distance. Testing is done one eye at a time, holding the Amsler chart at the distance from your face where the lines appear most clear.Testing must be done wearing your usual prescription reading glasses or bifocals, if you normally use them to read.There are some signs that only a trained eye care practitioner can detect. Note: An online vision test does not replace regular eye exams. If you are at risk for these problems, you can test your vision at home with these tests:
The damage may be caused by macular degeneration, glaucoma, or other eye diseases. The Amsler grid and Near Vision Charts are tools eye doctors use to detect vision problems resulting from damage to the macula (the central part of the retina) or the optic nerve. An early diagnosis means early treatment, which can save your vision.
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