Your cart

Pupillary Distance (PD)

PD stands for pupillary distance - the distance between the centers of the pupil in each eye. This measurement is crucial for us to line your RX up correctly. This measurement, typically measured in millimeters, helps to properly align prescription lenses to the center of the pupils. PD measurements are usually between 60-70 millimeters. You can ask your optician to measure this for you or you can measure it yourself.  Anywhere that has made lenses for you in the past has this measurement on file.  


 

How to Measure Your Pupillary Distance

To accurately measure the PD, use a ruler and a mirror or ask a friend for assistance.  Set a millimeter ruler on the bridge of your nose and align the Zero - 0 mark with center of your left pupil.  Looking straight ahead, use the ruler to measure the distance between the center of your left  pupil and the center of your right pupil.  The measurement should be taken twice for accuracy. 

Contact Sam with questions any time! 

We are here to make the process as easy as possible for you.