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Grafco Snellen Type Plastic Eye Chart
The Snellen eye chart is the chart with the big letter or symbol at the top that everyone is familiar with from seeing at the eye doctors office. The letters on the chart get progressively smaller 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, it tests your ability to see things that are far away.
|Type of product||Eye Chart|
|Minimum Shipping latency||3|