Vision Eye Chart Pocket Size Paper Print  (7.5 inch X 4 inch, Rolled)

This snellen chart includes red and green color bars for an easy and helpful color vision test screens for amblyopia snellen optotypes date back to 1862, when herman snellen released his first eye test in england.This 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. These optotypes feature strong serifs and follow idea of the 5 x 5 grid. These charts are of High Quality, Waterproof. Also included two sided tape.