If your eye doctor didn’t include your PD measurement on your RX, there are a few things you can do to get your pupillary distance. First, request the PD measurement from your eye care provider. Most eye doctor offices are familiar with patients requesting the PD to order their own eyewear, though some are hesitant to provide it if they fear you won’t purchase from them.  Second, visit an eye care provider (ECP or eye care professional) to have your pupillary distance measured.  As a last resort, you can measure your own PD (pupillary distance) with a millimeter ruler. To learn more visit our FIT GUIDE