Most people can play sports just a few days after the LASIK procedure.

Refereeing is a tough job, one that requires precision, focus and thick skin. Comedian Jay Leno once joked that, when he was a kid, he wanted to be a ref but his 20/20 vision was too much of a handicap. It’s a recurring theme in the world of sports: If refs get it wrong, they must have terrible eyesight. Here are some of the most notorious bad calls in recent memory.