I used to have a terrible time with sunglasses. Due to my prescription, fit overs did not work. And as I had variable strength lenses, nothing else seemed to be available. Oh yeah, Action Optics, and a few others offered bi-focals. But they had that line across the middle and looked liked sh!t.
Single strength contact lenses worked very well for me. Leaving several options for close up work. Flip focals etc. This allowed me to use off the shelf, non prescription sungalsses. Needles to say, a whole new world opened up.
Several years later, I went Lasik.
Talk to a good opthamologist. Tell him you want some good polarized sunglasses for fishing. And ask about options.
I fish because the voices in my head tell me to