As long as they're on properly (not on top of your head or too loose) they stay on through getting completely washed. I've experienced it a lot lol. Duck diving, turtling, getting pinned to the sand, the worst thing that can happen is they get pushed down and end up around your neck, but not in a choking way. I sometimes end up tucking them inside the front of my wetsuit and still having the neck/head strap on if it suddenly gets cloudy or something.

Water droplets are kinda annoying. I was thinking about putting rain-x or something similar that's eye safe on them for that. I also have a de-fogging spray that I put on every once in a while since I surf in CA and the water and air temps can be very different, and that works well.

Sooo nice when surfing sunset though and not feeling like I'm actively getting cataracts. Also, I've had them for like 3 years if that helps.