Only 2 steps:
1) Click the TRY ON button. A virtual fitting window will open.
For the first time, the site will request access to the camera. Allow access to continue.
Make sure your face is well lit. Look into the camera. The distance from the camera to the face should be about 50 centimeters.
You will see the PD measurement results at the bottom right
If this did not happen, then click on the PD button, and then click "Start automatic PD measurement"
2) Take note of your PD measurements. While you are checking out enter those measurements during the enter PD step of checkout.
PD or Pupillary Distance measures the distance between the pupils of your eyes. This measurement is used to determine where you look through the prescription lens of your glasses. Everyone’s eyes are spaced apart differently, thus the PD should be as accurate as possible for prescription glasses. The average adult's PD is between 54-74 mm; men 64-66 mm and women 62-64 mm.