http://www.slate.com/id/2198746/

This time, I wasn't going to fall for it. I'd been reading about a surprising new online business—prescription eyeglass shops that claim to offer well-made glasses at extremely low prices. Of course, I was skeptical; though I buy tons of stuff online (the UPS guy and I are great friends), glasses seemed too personal to choose based on a picture alone. But with a potential $600 bill staring me in the face, I decided to give it a shot—and I've emerged a believer.