For the first time ever, scientists have restored sight to blind mice by turning dumb cells in the retina into seeing ones, a new study reveals.

Researchers at the National Institutes of Health have reversed blindness in mice by using a gene injection to ‘reprogram’ maintenance neurons into rods and cones, the eyes’ light-receptive structures.

Nearly three million Americans have poor vision, and another 1.3 million are completely blind.

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