Woman's blindness apparently reversed by stem cell treatment...
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No one can explain exactly how Belton came to see again, not even the doctor who treated her as part of an unconventional stem cell study shortly before she regained limited vision.
Despite their promise, stem cell treatments often garner skepticism from experts who are still studying their safety and effectiveness. While stem cells can be grown into any type of cell in the body, scientists generally believe proving the cells can repair or cure anything is a ways off. The only U.S. government approved stem cell treatment involves blood clotting disorders, but that hasn't stopped those who can afford the treatments from seeking them.