How To Measure Your PD

Step-1

Put on any pair of clear eyeglasses. Face the camera directly. Snap a picture.
(It helps to be close up to the camera, and in a well-lit area.)

Step-2

Remove the glasses. Read the size printed on the inside of the frame. (It will look something like this: 45-21-145)

Step-3

Email the photo to customer service with the frame size information.