Prototype contact lenses developed by Babak Parviz at the University of Washington, in Seattle.
Dr. Parviz’s prototype lenses can be used as biosensors to display body chemistry or as a heads up display (HUD). Powered by radio waves and 330 microwatts of power from a loop antenna that picks up power beamed from nearby radio sources, future versions will also be able to harvest power from a cell phone. (more)
Alright, knock it off with the "See I A" and "eyes buggin' out" jokes.