I Knew Our Parents Were Lying! (page 3)
If you sneeze with your eyes open, they will fall out
Sneezing propels mucus at speeds around 100 mph, and there is a notion that this can generate such force that sneezing with open eyes makes them fall out. However, there are a number of reasons why this is false. First of all, the majority of people have a reflex that forces their eyes to close as they sneeze. Secondly, even those who lack this reflex still have their eyes. There are also plenty of muscles attached to the eye, which allow us to move our eyes up and down and from side to side, and these are also more than capable of keeping things where they should be.