Sunglasses?

Any one of eight pairs of Oakleys, three pairs of Ray Bans, or a pair of Bolles usually between me and the viewfinder.
My eyes have been really sensitive since I was about ten.

I wear my Oakley's that are not polarized when I shoot. I just got used to using my view finder while wearing sunglasses. I had to since I shoot off road races, and there is always dust and dirt flying all over the place. The glasses allow me to keep my other eye open (to watch for out of control trucks) and keep the dust & rocks out of it.