Snellen Type Plastic Eye Chart - 20'
Non-reflective, matte finish with green and red color bars.
20' distance. 22" x 11".
The Snellen eye chart is the familiar chart with the big letter or symbol at the top and progressively smaller letters at the bottom of the chart down to 20/20 or better. This is a chart for measuring visual acuity at a distance - in other words, how well you can see things that are far away.