Snellen Eye Chart 20 Feet
Snellen Eye Chart 20 ft is the most commonly used eye chart
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The Snellen Eye Chart 20ft is the commonly used chart with large letter or symbol at the top that progressively get smaller as you reach the bottom of the chart. The bottom of the chart tests for 20/20 vision or better. This is a chart for measuring visual acuity at a distance. This laminated chart measures 22" x 11" and has a non-reflective matte finish.