Last year, I stumbled upon a blog post about buying prescription eyeglasses online. It sounded too good to be true: you could get any frames you wanted quickly and cheaply, and the comments were filled with optometrists freaking out. Eventually, the author launched a dedicated blog for it called Glassy Eyes. When the site was recently mentioned on MetaFilter right around the time I was getting my 2-year exam, I decided to take the plunge myself and order some glasses online.