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Scientists restore monkey's vision with a patch made from human stem cells | Live Science
Scientists were able to treat a "macular hole" in a monkey, helping to restore the animal's vision thanks to human stem cells.
Dr. Michiko Mandai, director of the research center at the Kobe Eye Hospital in Japan, has been working for years on developing miniature, lab-grown versions of retinas from stem cells. In 2019, Mandai had an opportunity to test these sheets on macular holes: Another lab studying how the eyes and brain process images found that one of their Japanese macaques ( Macaca fuscata) could not complete visual tasks. Last year, the researchers reported results from a clinical trial that used the sheets in human patients with retinitis pigmentosa, a genetic condition that causes progressive vision loss.
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