Pupillary Distance (PD) Measurement Instructions

To measure your PD:

  1. Download the PD Measurement Instructions (PDF file) and open it in Adobe Reader.
  2. Print it at “No Scaling” or 100% scale setting.
  3. Fold the PD ruler along the dotted lines.
  4. By looking in the mirror or with the help of a friend, line up the ruler’s zero with your left pupil.
  5. Without moving your head or the ruler, mark the ruler where it lines up with your right pupil. This number is your PD.
  6. Enter your PD along with your prescription to complete your purchase.
Measure Your Pupillary Distance (PD)