I wear good old government issue sunglasses. Normally, prescription sunglasses aren't cheap, but I get these for free. We call them BCG's (Birth Control Glasses) because the wearer is practically guaranteed to repel the opposite sex. They're not flattering, but the price is right. Because I have lost a few sets of sunglasses over the years, I put a lanyard on them, just in case my wading turns into swimming.