Pupillary Distance (PD in short), also called inter-pupillary distance (IPD) defines the distance between the centers of the pupils in each eye. This value is significant and used when fabricating prescription lenses for eyeglasses. The distance is usually measured in millimeters.
The PD measurement is not always written on the actual prescription. Normally if you ask your optometrist to write it down for you they will. a normal PD range for an adult is between 55mm and 65mm. Here we have provided a PD ruler for you to measure your PD by yourself. Follow the Pupillary Distance Guide below and enter your PD value when buying the eyeglasses online. If you have any questions, contact us and we'll gladly assist you.
Pupillary Distance Guide
Print the following guides to measure your pupillary distance. Be sure to choose in your print setting to print "actual size" (do not reduce image to fit on page).
To verify that you have printed the size guide properly, compare your printed ruler to the left with an actual ruler at home.
Cut out your pupillary distance ruler below and fold in half along the dotted lines.
If you do not have a printer or would simply prefer to use your own millimeter ruler that is fine to, just remember you are measuring the distance between the centers of your pupils. If you have a friend that can help, it will be much easier.
Place the ruler template over the bridge of your nose, as pictured, look straight ahead into a mirror and write down the PD value you see for each eye.