KASHSURG Snellen Chart with Red Green Lines 10 Feet_162_Pack of 27 Vision Test Chart  (Snellen)

Snellen wall 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.Snellen Wall Chart 14 in x 9 in. And the top centre hole, easy to hang on the wall.This Snellen eye chart assists in measuring visual acuity at a distance of 10 feet away from viewer. 20 feet equivalent for testing at 10 feet (3 meters).Snellen chart includes Red and Green color bars for an easy and helpful color vision test.Made of NTR Plastic and washable. Perfect for optometrists, students, offices, and schools.