How do I read my prescription?

On a typical prescription, you will see… http://www.eyebuydirect.com/faq.php

How do I know which size of frames will fit me?
If you have an old pair of glasses, kindly look at the set of numbers listed on one of the side arms – this is the dimension of your existing frames and you may use this as reference when choosing a frame from our collection. Another way would be to measure the total width across from one temple to the other and compare it with the total width of our frames.

What do the check marks on the boxes with Single Vision, Bifocals and Progressives mean?
This means that the frame you have selected can go along with those types of lenses. Currently, we can process a pair of Single Vision lens with ALL of our frames, however, for Bifocals and Progressives, there are only some frames which we can use for these types of lenses – frames with a lens height of 30mm and more.