"Big John" wrote in message
...

Basic rule was that you needed 20/20 to get in pilot training.

The RAF have pretty much the same rule I believe. The answer
was given by someone on television...you try pulling +9/-3g in
combat while wearing glasses or contact lenses wearing a hot
flight suit and gear, under other sweaty conditions and see where
the things end up! While easy to get around using prescription
goggles or something like that, normal glasses just bounce around
too much, and contact lenses are dangerous as they migrate/come
out. This is what they said anyway.

Paul