I have been wearing bifocal sunglasses for 2 years now. Best thing since snuffer launched spinnakers. I get prescription (I'm nearsited) sunglasses , polarized (for sailing), bifocals (I can't see near anymore), in a Rayban Wayfarer frame (very tough plastic frame). I was really surprised how much I like them, and not just for sailing. I wouldn't have been willing to pay as much before I had them. Having now experienced them they are "worth" more to me.