For one thing, did you know that carrots don’t actually improve your eyesight? At least not anymore than any other vegetable. The fact that carrots are good for your eyes was propagated by the British during World War II because they didn’t want the Germans to find out that their pilots were using radar to shoot down their planes (radar was new back then). To hide their advantage they came up with a cover story – their pilots had really good eyesight because they ate lots of carrots. And since that day people have believed it. We’re not even joking. These are 25 eye catching facts about the eye and its incredible complexity!