There is a small but real risk of contracting eye infections from water, possibly the most serious infection, but not the only one, is Acanthamoeba Keratitis, it can be sight-threating and life-changing. The wearing of swimming goggles or a mask over contact lenses reduces the risk of infection but doesn't eliminate it.
Therefore to be as risk adverse as possible anyone with a vision correction wanting to partake of water sports should wear prescription goggles, not contact lenses at all. This also has the benefit that should anyone want to fall asleep after their exercise in the water the can do easily!