Check out DriveWear transition lenses. They're one of a kind, and all I wear any more. Flats, rivers, lakes, cloudy, sunny, snowing, driving, whatever. I think of them as my "magic glasses." They're polarized, of course. The ones I currently have (two pairs) are from Habervision, and are bi-focal prescriptions. $265ish each, due to the prescription, and worth every penny. I can even wear them at night to reduce glare from traffic and/or city lights! The same lenses I wear at hight noon on a bright June day on the Henry's Fork, or a tarpon flat.

All I do is sight fish. Ever. My glasses are the most important peice of ishing equipment I own. Drivewear is unreal.