I have a set of Rx Maui Jim's, they are polorized and they have the reflective coating on the outside and inside of the lens said to help reduce such annoyances, but they were pricy about 500 dollar bills. Yea, I know that's outragous $ for sunglasses of any kind, but I got these because of headaches I get due to riding in and out of shadows and these frames had to be custom shaped to wrap around and help with peripheral flashing of light coming in from the outer edges of the frames.............................this all stems back to long days behind windshield trying to make a buck in the company car......many years ago now, that job is gone but the affects unfortunately remained.
I also will confirm the concerns raised earlier about the negative polorized effects, however, they have not as yet posed me any significant concerns, like a trained rat in a maze you learn to distinguish between what's real and what's not, but there is a learning curve to overcome. There is a wierding associated w/the curvature of the face shield when using polorized lens, but not much if any in the front/forward view through the shield, so long as the shield is optically correct. The polorized lens is a must for me not only to keep the headaches away, but also the added benefit of being able to see through sharp shaddow contrasts where objects or road hazards may lurk. They do pose some problems with the color red. Weigh the pros and cons and decide for yourself, if you don't want the polorized lens, I would still give some significant consideration to getting the reflective coating both inside and outside the lens.
I have had the hardest time finding good Rx sunglasses that actually fit under a helmet.
