"The therapy uses optogenetics, a technology that uses a combination of gene therapy and light to precisely control nerves. The therapy should make certain nerve cells in the woman’s eye, called ganglion cells, light-sensitive. The eye was injected with viruses carrying DNA from light-sensitive algae. If it works, the cells will do what the healthy retina’s cones and rods do: fire off an electrical signal in response to light, restoring some vision."
(Credit to MK)
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