Human embryonic stem cells are able to become any kind of tissue in the body. Because of this, many researchers see huge potential for curing and preventing disease. Up until now this has been theory, but a new study has had early success in using stem cells to improve the eyesight of the blind. This sound-rich story takes you into the operating room to hear the eye surgery and meet someone whose life was changed by the procedure.
Story Length: 8:48
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