Snellen Chart with Red Green Lines 10 Feet 9 X 14 in.

Snellen Chart with Red Green Lines 10 Feet 9 X 14 in.

• 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.
• 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 Sheet and Washable. Perfect for optometrists, students, offices, and schools.

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. These Snellen optotypes have changed little throughout the years and are used regularly today. These optotypes feature strong serifs and follow idea of the 5x5 grid. Snellen chart is also coupled with red and green stripes for an easy color vision test.