soft contacts usually slip during play, but its really hard for them to fall out. hard contacts usually dont get washed out, but if you blink the wrong way then its over. i play with both, and the thing i do is i make sure that i dont open my eyes underwater. if i have to, i squint, but other than that if i stick my head under to draw a foul or what not i keep my eyes closed. if that doesnt work for you, you could always learn to play without contacts. When i first started, i learned how to play by seeing colors (caps are usually contrasting colors) and just go for a yellow blob (the ball). goggles are not allowed in water polo games so i do not recommend getting prescription goggles for water polo.