Neuroprosthetics interact with the nervous system to restore lost functionality. A good example is the cochlear implant, a small electronic device surgically implanted in the inner ear that stimulates the hearing nerve to provide sound signals directly to the brain, improving hearing.

Now, researchers from the University of New South Wales (UNSW) are exploring whether a similar neuroprosthetic technology can restore vision in people with damaged photoreceptors, specialized cells in the retina capable of absorbing light and converting it into electrical signals that can be sent to the visual cortex.