PARIS — Scientists have for the first time managed to partially restore the sight of a blind patient by altering his cells, according to the results of a groundbreaking study published on Monday.
The technique known as optogenetics, which has been developed in the field of neuroscience over the last 20 years, involves genetically altering cells so they produce more light-sensitive proteins.
In some cases of blindness, known as inherited photoreceptor diseases, light-sensing cells in the retina that use proteins to deliver visual information to the brain via the optic nerve progressively degenerate.
Scientists in Europe and the …
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