Amsler Grid

The Amsler grid is a simple test of vision quality that detects even minor changes when they first occur. It is easy and quick, and the results can give you a timely warning of changes in your retina that warrant immediate attention by a retinologist.


To test your central vision:


  1. Position the Amsler Grid at a comfortable reading distance. Wear your reading glasses.  Face the image squarely.  The pattern should be in focus.
  2. Cover one eye with your hand. Look directly at the dot in the center of the grid. Note whether the lines are straight and the corners intact.  Make certain you only look at the center.
  3. If any of the lines appear distorted, blurred, discolored, or totally absent, call your retinologist right away.
  4. Repeat the test for the other eye.