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Eye Tester

James F. Carter <>, 2024-03-13

Make the window as wide as possible; OK if you have to scroll vertically. Make measurements and fill in the form below, and hit Submit. Your visual acuity will be calculated and displayed.

Width Chart width in millimeters between its border lines; make as wide as possible.
Distance Distance eyes to screen in millimeters (or 10 x centimeters or 25.4 x inches).
Letters The 5 letters on the smallest row you can read; upper or lower case are accepted. Or read the LogMAR off the chart, e.g. 0.5 in the 2nd column from the right.