I grew up with severe astigmatism. My eyesight was so bad I couldn’t see the writing on the blackboard in school unless I stood beside the teacher’s desk and squinted like Mr. Magoo. Even then, it ...
When a person has 20/20 vision, they can see with standard visual acuity. This refers to the sharpness or clarity of an object 20 feet away. The general standard that corrective measures try to ...
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