Prescription sunnies

Sorry mate, sounds obvious but I think its about the only place you'll get 'em

If want a greater choice of brands/frame etc. contacts are the way forward. Replacing your glasses are a lot simpler i.e. when they don't have prescription lens, and if you do long rides or rides that go into the night, then you don't have to worry about bringing a second pair, unless you're wanting to go for the Ray Charles look...

In my experience though, I have found contacts to be more hassle than they're worth. When I got dust/mud/salt in my eyes, contacts would exaggerate the situation to such a point that I would have to remove the contact(s). This kind of situation would force me to bring a pair of prescription glasses anyway thus negating the point I made earlier.
Downside is that depending on the weakness of your eyes, one is limited to the choices of sunglasses. The curvature of the frame limits the thicker lens being used, so I have been told by 3 optometrists. I also had to pay more for the prescription lens I wanted because they were made specifically for the frame. Again, I'm not sure if this is true and I was just gullible but I'm faced with a 2 week delay for a replacement if I damage a lens.

I must admit, I do multiple outdoor sports and I'm getting frustrated with my vision to such a point that I'm considering something drastic, like surgery...