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Foldable Cardboard Tube Brings Easy Eye Test to Developing World


Foldable Cardboard Tube Brings Easy Eye Test to Developing World
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More than 150 million people around the world need glasses but don't have them. Many may not even realize they have a vision impairment. Indian designers have developed a low-cost, easy to assemble eye test device that could help millions of people in the developing world. Faith Lapidus has details.

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