With the EyeRing, a new camera-equipped ring that takes photos and delivers them to a smart phone, “point and shoot” could take on a whole new meaning. The device, which is being developed by  Roy Shilkrot and Suranga Nanayakkara at MIT Media Lab, is meant to help the visually impaired navigate their surroundings. The remarkable, Bluetooth-connected device can serve as a “virtual cane,” which not only detects obstacles in its path but also reads signs, identifies currency, and perceives color.