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Back in 2007, an eye implant made headlines because it ushered in the hope of banishing blindness for good; now a modified Argus II eye prothesis can potentially close the gap even more, if in an unexpected way. It focuses on expediting blind people's rehabilitation into a visual world by providing them with a way to read braille with their eyes rather than by touch.

Developed in in Sylmar, California, by Second Sight, the modified Argus II eye prothesis "works by transmitting images from a face-mounted camera to nerves at the back of the eye with electrical signals," according to The Verge. Led by Thomas Lauritzen, the team has worked with a patient who can identify 89 percent of individual braille letters.