Contact sports are risky, and not being able to see clearly makes them even riskier.

Sports can feel like a distant dream if you wear eyeglasses or contacts. For team sports such as football or rugby, the National Eye Institute recommends that you wear eye protection in addition to glasses or contacts, which often feel awkward and cumbersome.

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.