In 2006, Nature published a paper describing how stem cells could be used to restore sight in blind mice. This study, and similar subsequent studies, created a lot of excitement about the potential of stem cells to cure blindness in humans. Fast forward 12 years and we still don’t seem to be quite there – one notable human clinical trial in Japan was stopped in 2015 due to a risk of tumour development in a patient’s eye. So are we any closer to using stem cell therapies to treat blindness, or will we always be “ten years away”?
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