How to Measure Your Pupillary Distance (PD)

Measure your PD without an Eyecare Professional

Before a pair of prescription glasses can be made, we'll need your PD measurement as part of your prescription. Although we recommend getting your PD measurement from your eyecare professional, you'll still be able to measure it on your own, and we'll show you how!

Do It Yourself!

Print out the All4Eyes PD Measurement Ruler, and simply follow the 7 easy steps on the print out.

Why do I need my PD measurement?

Your pupillary distance (PD) is the distance in millimeters between the centre of one pupil to the centre of the other. Having a correct PD on your glasses prescription insures that you are looking through the ideal spot in your lenses, which helps to enhances the clarity and comfort of your wearing experience. If you decide to order a pair of average PD measurement glasses and find yourself getting along with them less than perfectly, do tell us, and we’ll either replace your glasses once we’ve collected a correct PD from you or an old pair of your glasses, or give you a full refund.

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