Eye chart

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Size: 2821px × 3524px
Photo credit: © britstock images ltd / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: acuity, blind, chart, contacts, correction, dispense, eye, glasses, health, healthy, letters, measurement, numbers, optician, optometrist, optotypes, prescription, psychophysical, read, reading, sensory, size, symbols, test, testing, threshold, vision, visual