How strong is your prescription? One thing to think about is that, if you're blind as a bat like I am, having a strong prescription severly limits your choice as to the make and model of frames you can get. I went with a set of Oakley Square Wires just because the curviture of most sunglass frames (I really wanted the Half Jacket or Full Jacket) won't work for me - apparently it's impossible to grind lenses in my prescription with the curviture that will fit your typical sporty sunglass frames. I've been told this by three different stores. Sucks for me, at least until I pony up for Lasix