Acuity of vision is a term used to describe the clearness or sharpness of your vision when measured at a distance of 20 feet. ‌ Visual acuity is the most common clinical measurement of how your eyes ...
A refraction test is usually given as part of a routine eye examination. It may also be called a vision test. This test tells your eye doctor exactly what prescription you need in your glasses or ...
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What does it mean to be legally blind?
Being legally blind means having central visual acuity of 20/200 or less in the better eye with best correction. To diagnose legal blindness, healthcare providers use tests like the Snellen eye chart ...
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