Partial sight restored for man who is blind thanks to optogenetics

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The optogenetics technique is combined with glasses that generate amber light

Sahel et al, Nature Medicine and StreetLab/Institut de la Vision

A man who is blind has had glimmers of vision restored thanks to a high-tech treatment using optogenetics, which involves genetically altering nerve cells so they respond to light.

French firm GenSight Biologics has published results showing that the first recipient of its treatment can recognise different objects in lab tests. “It’s exciting to see the first publication on human optogenetics,” says Ed Boyden at the Massachusetts Institute of Technology in Boston, a co-inventor of optogenetics.

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