Oh thanks Eden! Any more specific advice, in terms of colors, brands, etc.? Do you use frames that wrap around to keep sun from getting in through the side, or is that not as important.

Cost is also an issue. I need both a spare pair of eyeglasses and sunglasses, and I also have a complex prescription so I was thinking to just have my spare pair made in a normal frame with transition lens to be multipurpose, for cycling and other outdoorsy stuff.