MIT researchers are developing a microchip that could help blind people regain partial eyesight. Though it won’t completely restore normal vision, it will enable a blind person to recognize faces and navigate a room without assistance. The chip, which is encased in titanium to prevent water damage, will be implanted onto a patient’s eyeball. The patient will then wear a pair of eyeglasses equipped with a tiny camera that transmits images directly to the chip, which in turn sends them to the brain. With any luck, human trials are only a few years away.