A brain implant for restoring sight will enter clinical trials

Eric Selby poses with Second Sight's Argus II fitted in his right eye, which enables him to detect light.

Second Sight, the company that created the first artificial retina for people with a certain form of blindness, is now testing a brain implant called Orion, according to MIT Technology Review. The USFDA has conditionally approved a clinical trial of the technology, and the company plans to start enrolling patients for the trial implants in October.

How it works: Electrodes send electrical pulses to the brain's visual cortex, which registers the information as patterns of light. (Typically the visual cortex receives input from the retina).