grafco snellen eye chart plastic with non reflective matte finish 22x11 1240

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Grafco Snellen Eye Chart Plastic With Non Reflective Matte Finish 22x11 1240

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Your vision is usually the first test your eye. Ophthalmologists, physicians who specialize in the eye, also use eye charts to monitor the visual acuity of their patients in response to various therapies such as medications …

Snellen chart is the most frequently used eye test chart. An eye chart, or optotype, is a chart used to measure visual acuity.eye charts are often used by health care professionals, such as optometrists, physicians or nurses, to screen persons for vision impairment. The snellen chart, the tumbling e chart contains only the capital letter 'e' in different spatial orientations.