Neuron-sized brain implant could help blind people see again

A team of researchers have built a vision implant with tiny electrodes the size of a neuron, seeking to help blind people see again. The development of vision implants first emerged in the 1990s. The technology targets patients suffering from damage to the eye, but whose visual cortex— the brain’s visual centre — is active and able to receive signals. But despite the solution’s potential, existing methods are limited by the large size of electrodes and metal corrosi