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Snellen Eye Chart, Red and Green Bar Visual Acuity Test, 10 Foot Test Distance
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About Snellen Eye Chart, Red And Green Bar Visual Acuity
This Snellen 10' test distance eye chart includes red and green color bars for an easy and helpful color vision testing. This eye chart is made of high impact polystyrene that is easy to clean and is durable. The physical size of this Snellen eye chart is 17"x 11" and can optionally be wall mounted. This eye test chart is compatible with the Precision Vision LED 960 Illuminator Cabinet and the 914 Illuminator Cabinet. 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 5×5 grid. This idea is being used by many other optotypes today, including Sloan and Patti Pics optotypes. Screens for Amblyopia. Most Trusted in Vision research & Clinical Trials Worldwide
