Originally Posted by aerogramma
Just google it or, even better, ask why to an eye doctor.
I've asked, googled and been wearing them with goggles for many years. No one would recommend wearing them w/o goggles - they fall out. Even if they didn't there is a risk of picking up water-born junk that could cause an infection - just like if you handle them with dirty fingers or don't clean them regularly. Common sense - wear goggles and keep them as clean as you normally should.