You would have to be in water so turbulent that your helmet gets torn
off your head, or your eyeballs get sucked out of their sockets to
lose your glasses

--Never lost a pair of glasses, but on two occasions had one of the
lenses blown out in turbulent water....
Joe P.

Wow, what happened to your eyes? (Not a joke or a smartass remark, either.)
Sandy

--Never lost a pair of glasses, but on two occasions had one of the
lenses blown out in turbulent water....
Joe P.