Eye, Robot: Fascinating video shows tiny robots swimming through an EYEBALL

It's a far cry from robots trying to take over the world in the 2004 Will Smith film I, Robot. But now scientists claim actual eye robots could one day be used to deliver drugs in human eyes to prevent blindness. Fascinating footage shows miniscule machines driving through the eye and carrying medication directly where it needs to go. The devices, called micropropellors, are 200 times smaller than the width of a human hair and use spiral tails to spin through the eye's jelly. Experts, who have only tested the microrobots on dead pigs' eyes, say they could be more effective and faster than using eye drops or injections.