Prescription FAQ: What is my PD?

What is my PD and why do I need it?

PD stands for pupillary distance, which is  the distance between the centers of each eye. While this measurement is not strictly necessary, the docs highly recommend you provide it to make sure that your glasses come out right. Your local optician/optometrist can quickly get that number for you (they may even have it on file for you if you visited them in the past), or you can take a picture at home and send it to us to measure for you.

If your prescription does not include your Pupillary Distance, just call the last place that performed your eye exam to have them measure, or you can do it easily at home by following the directions in the image below. Please email the picture to us after purchase to get a more precise fit!