After having Lasik done, I decided to splurge on some sunglasses.  First on my list some every day sunglasses that look good on my large head.  I opted for these.  They fit nicely, both in terms of function and style,  They never have caused any of the issues of pulling hair, pinching noses, or anything else.  Again, my head is rather large (typically wear 7 3/4 hats), but it works for me.  The vision is crisp and sharp, although I'd rather have polarized ones for driving (nowadays many cars have raked windshields that cause more glare than upright ones).  For around town these work great, and not being polarized helps with gizmos and such.  Other than that, what's to say.