Acuity Measurements--Do They Indicate How Well a Partially Sighted Person Functions or Could Function?

Acuity Measurements--Do They Indicate How Well a Partially Sighted Person Functions or Could Function?

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The measurement of distant visual acuity is all too often believed a reliable indicator of what a person can do with his eyesight. However, it does not tell about the quality of image seen, and cannot tell what a partially sighted person has accompl...