Online Vision Test - EyeQuestions.com

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Instructions:

  1. Distance from the monitor should be 20"
  2. The accuracy of this test is subject to variables, screen size and resolution, brightness and ambient lighting
  3. Use the "+" key to increase letter size ("-" to reduce). If the keys don't change type size, click on the flash movie to activate it
  4. Acuity (or visual acuity) is mentioned at the top of the test area in terms of 6/6 or 20/20 etc. Corresponds to the size of the letters you just manage to read
  5. It is preferable to go up from smallest font size to larger size