Snellen Distance Vision Eye Chart 20Ft (Pack of 1) Free Shipping

Product Description

These Snellen Eye Chart was originally introduced in 1862 by Herman Snellen. The Snellen eye Test uses the idea of subtended 5 minutes of arc with a

The Snellen eye test uses the idea of a subtended 5 minutes of arc with a 20 foot distance. This became the standard vision measurement. Also,

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McKesson's Snellen eye test chart is useful for doctor's offices. It's perfect for testing a patient's sight during eye appointments. It features a non-reflective matte finish and is for a 20-foot testing distance. Size: 11 inches x 22 inches.

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