I have pale blue, light-sensitive eyes. I bought a pair of the darkest-lens Oakley M-frames at Cabela's using a discount card, essentially paid half retail. It's taken discipline to keep them in good shape, but they allow me to drive and function in situations which were extremely difficult before using cheaper, non-polarized eyewear. Of course, when the occup. safety instructor asked what was the most important PPE, I was the only person who answered "eyewear".