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An “artificial retina” developed at the University of Sydney may one day restore sight to the blind, according to its creator, Matthew Griffith of the Australian Centre for Microscopy & Microanalysis and the School of Aerospace, Mechanical and Mechatronic Engineering. The electrical device acts like a retina, using absorbed light to fire neurons to transmit signals. It was created using multicolored carbon-based semiconductors.
The device is a type of neural interface; it interacts with a person’s nervous system to record or stimulate activity, and it functions like the actual retina. It receives light taken in through the eye, which it converts into neural signals that are sent to the brain for processing.