This happened earlier this year, but the story is making the rounds now. A guy from Brazil, who’s known as Tio Chico, set the Guinness record for the farthest eyeball pop.
He can make his eyeballs pop out to a protrusion of 0.71 inches beyond his eye sockets. It might not sound like a lot, but when you see his protruding eyeballs, you’ll get it. By the way, the official measurement was done by an optometrist.
(You can read more about him, here.)