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There is no official count of how many people in the world are blind, nor is there one single definition worldwide of what constitutes blindness in a legal or formal sense. It is estimated that about 40 million people suffer from blindness worldwide, according to the standards used by the World Health Organization. Another approximately 245 million are considered visually impaired by this standard, but this number would include some considered blind under the legal standards of various nations.

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12y ago

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