Gene therapy could cure blindness by replacing vision cells in the eye

Researchers at the University of Manchester have used gene therapy to re-programme vital cells in the eye, to make them sensitive to light again. The treatment has been successful when tested on mice. When shown a video of a swooping owl, the supposedly blind mice saw the owl and ran for cover. Unlike in previous studies, the mice could see in normal levels of light, rather than only under extremely bright levels as before.