HOW TO MEASURE
PUPILLARY DISTANCE
(Or Where to Find it on Your Prescription)

What is PD? Why Do I Need It to Buy Glasses?

Your binocular pupillary distance, or PD, is the distance in millimeters between the center of each pupil. This measurement helps ensure the optical center of each lens matches up with your line of sight. Basically, it ensures your prescription is in the correct position for you to see as clearly as possible.

Where Can I Find My PD on My Prescription?

Your measurement should be located in the PD or Pupillary Distance section. It may also be featured in a separate section from the main prescription information. If you have two numbers, your doctor may have measured your dual PD.

Still can’t find it? Don’t worry, there are a few easy ways to obtain your PD. You can request it from your doctor for free, walk into a Premier Edge location to get it measured, or use our third-party partner’s online PD measurement tool when you upload your prescription during check out.

Found your PD? Let's start shopping!

What If I Don’t Have My PD?

Not all is lost if you don’t have your PD measurement. After all, this measurement is not a requirement to make your purchase. But there are a few reasons you may want to go through the extra effort for the best buying experience.

If you are unable to provide your PD, a standard PD value will be used to fill your prescription. Since this standard value won’t reflect your unique measurements, the optical center of your glasses may not have the ideal placement. This can cause less than optimal correction and may create visual distortion.

Ultimately, it’s always best to provide your PD to Eyeconic for the best clarity and to get the most out of your new glasses. You can even take your measurements yourself with our 3rd party partner’s online PD tool when you check out!

How Do I Measure My PD? And How Do I Provide It to Eyeconic?

If your PD value is not included on your prescription, no problem. When you check out, you can use our third-party PD tool to get the measurement before you upload your prescription. After you complete your measurement, we’ll prefill the value for you.

If you got your PD from your doctor, you’ll input your PD during the checkout process.

This graphic shows where you’ll add your PD. Depending on which you have, you can input your single or dual PD. If you have a dual PD, you’ll input your right eye PD first and then your left.