The Issue of Blindness in the United States (571 words, 5 pages)
The term blindness implies total orpartial loss of vision involving both eyes. The exactlevel of vision defined as blindness, however,varies in different countries because of differinglegal or social requirements. In the United States,blindness is defined as unimprovable vision of20200 (660) or worse. This means that anindividual is generally considered blind ...
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