Eye Test Chart

This eye test chart or Snellen Chart is the same chart that your doctor would use to determine the health of your sight.  Display the the chart on your screen and then work out how far from the screen you should stand.

(The normal height for the letter A is 88 mm, and the viewing distance is 6 meters.)

When you are viewing the chart on your monitor you have to work out how far away you need to stand, based on the actual size of the letters on the screen.

• Measure the height of the letter A in millimeters.
• Divide by 88.
• Multiply by 6.

The final number is the distance (in meters) that you should stand from the monitor. For information on using the chart refer to the MD Support Library.

Eye Test Chart (Snellen Chart)

This chart is for guidance only and is not a substitute for a proper eye test with a qualified professional such as Barnabys Opticians.  Health care professionals recommend that all people should have periodic and thorough eye examinations as part of their routine primary care, especially since eye examinations may detect potentially treatable blinding eye diseases, or signs of tumours or other anomalies of the brain.

Your eyes matter.  If this simple eye test chart gives you any cause for concern then get in touch with Barnabys Opticians now and phone 01202 526341.