Prescription or normal? I have been using Smith Optics prescription sunglasses for over twenty years. I prefer the glass sandwich polarized/photochromic (about 18-20%). They have a bunch of different styles, sizes of lenses, and tints including some especially for fishing with side shields and large lenses. The glass lenses are heavier but really resist scratching much better than the plastic lenses. I have had to replace only when my prescription has changed. As suggested above get a strap for the glasses.
