Visual Acuity Test
The visual acuity (VA) test is most often utilized to measure a patient's vision. A "self-test" eye chart is found on this site which allows you to check your vision. It's important to keep in mind the variables that may effect the test results, such as room illumination, computer graphics card, monitor type, etc.
How to use the eye chart1. Check each eye's VA separately by covering the other eye.
2. Check VA's with and without glasses on.
3. Maximize your browser window so you can see the images most naturally!
4. Place yourself at a distance of about 10 to 12 feet or 3 to 4 meters.
5. Read the eye chart line of letters from large to small. At the top left of each line you will find the approximate VA, expressed in tenths, that would be necessary to read the letters.
6. To conduct a quicker and more accurate exam, have a second person cover and uncover the line of letters.
This test is a courtesy of Drs. Robert Volpe and Timothy Albert from EyeWeb.