If the notion of a tiny robot swimming around in your eye leaves you a bit uneasy then, well, you might want to stop right here. For the rest of you, though, you may be interested in some new tests now being conducted by Michael Kummer and his team of researchers at the Institute of Robotics and Intelligent Systems in Zurich, Switzerland. What you're looking at above is a pig's eye, and the tiny black spec near the top is a microbot that's able to roam around the eye with the aid of an electromagnetic system. While things are still obviously very early, the researchers say the microbots could eventually be used to precisely deliver drugs in humans, and treat issues like macular degeneration. Head on past the break for the video.