Snellen Eye Chart
Comes with metal eyelet for wall hanging
The Snellen Eye Chart measures how well a person can see at various distances. The chart is imprinted with block letters that line-by-line decrease in size, corresponding to the distance at which that line of letters is normally visible. The Snellen Eye Chart is used to test visual acuity with the patient positioned 20 feet from the chart. Visual acuity refers to the clarity or clearness of the vision, a measure of how well a person sees.
3m Chart, Numerals or AOE (32 x 15cm)
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