Measure your pupillary distance (PD)

PD is the distance between your pupils, and it's used to help center a prescription correctly in your frames. Before using our PD tool, review the steps below.

1. Take your glasses off for your photo.

It also helps to be in a well-lit area with a clean background.

2. Adjust your screen and look directly at the camera.

It should be positioned straight on with your face centered.

3. Place any card (approximately the size of a credit card) under your nose and snap a pic.

Be sure the card is touching your face. (Do not show the side of your card with numbers.)