I had a pair of Bolle with a TRU Brown lens, they were great on water and everywhere else I went. They were $150 or so but were given to me by a local hunting celebrity. They were the first really nice glasses I ever had and I took care of them. They lasted 3 years. I use to go through 3-4 pair of cheap glasses a year, mostly because I would lose them.
This year I had prescription sunglasses made with a brown polarized lens, I don't have a prescription but I had the reader bifocal put in them. I couldn't tie lures without my reading glasses. I also bought some $20 cheapie sunglasses from wally world that have a bifocal.
Key is to take care of them, careful what you clean them with, using the wrong cloth to wipe them will scratch them quicker than anything.