what is a PD (pupillary distance) and how to measure it?

PD is a short term for “pupillary distance” which is the distance between one center of the pupil to another. This is information is important when ordering your glasses.

How to get PD measurement

what is a PD (pupillary distance) and how to measure it?



1. Request your PD measurement during an eye exam

PD provided by an eye professional is the most accurate measurement and is recommended.

2. Use an online application

Search "PD measurement" from Google or Apple App store.

There are numerous free applications available to download. We recommend "GlassesOn". Using the application, try measuring up to 3 or 4 times, and you will find that you will get similar measurements.

3. Send us your picture and we will provide a PD

Take a picture of yourself with a credit card on your forehead and we will provide a PD. Please send the picture to info@ateyewear.com with your order number.