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How Many Braille Readers Are There?

Why We Should Question What We Have Been Led to Believe “To know that one knows what one knows, and to know that one doesn't know what one doesn't know, there lies true wisdom.” —Confucius When we read a statistic about blindness or low vision in the news media, how often do we think about the source of that data? Does it come from a census? A survey? An estimate? How recent are the data behind the statistics? For Rebecca Sheffield, Frances Mary (F.M.) D’Andrea, and Valerie Morash, a…