So here we go again...........................

Prescription Eyeglasses/Sunglasses and Measuring Your Pupillary Distance (PD)

Pupillary Distance is the distance from the center of the pupil (black circle) in one eye to the center of the pupil in the other eye. This measurement is used to accurately center the lenses in the frame that you have selected. It's quite easy to have a friend or "loved one" calculate it for you (and then you have it for all future orders):


  1. Place ruler (in mm) on the bridge of your nose.
  2. Measure the distance between the centers of your pupils with your eyes looking into the distance (This can be done using a mirror or by a friend/spouse).
See picture at: