Some opticians may even deliberately leave this information out, since they know that, by giving you your PD measurement, you’re able to go ahead and order glasses from another supplier. Unfortunately though, this isn’t always the case. In a perfect world, your PD measurement is included on the eyeglass prescription you receive from your eye doctor, or optician. PD is measured in millimetres (mm) and is an important measurement that all eyewear manufacturers need in order to produce a pair of prescription lenses that can correct your vision properly. PD stands for pupillary distance, and simply refers to the distance between the centres of each of your pupils. Repeat 3 times for accuracy and use the average for your final PD measurement. ![]()
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