A group of Stanford University scientists has helped mice with destroyed optic nerves to see again, a feat that has long been considered impossible, Time Magazine reports.
Andrew Huberman and his team describe this feat in a study published in Nature Neuroscience.
Once the optic nerve is destroyed, the long finger-like extensions sent out by nerve cells from the eye to the brain begin to shrivel, and the connection to the brain is lost, resulting in blindness.
Huberman and his colleagues found a way to rescue these extensions, called axons, and get them to stretch out again.
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