Great input already. As an add-on to the same subject, How do you buy them? I don't think I have a strange head, but if I go to a dealer to try on glasses, each model fits differently ,none of them just right, and no one can have the model you want, in the color etc. you want, so you have to order one or more pair to put it all together. To me that says you can't order through Eyesave etc. and get a deal, which sends me toward doing business with an optical store that can fit what I like.