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What is a PD - Pupillary Distance?

Your Pupillary Distance (PD) is the distance between the centre of one pupil to the centre of the other pupil measured in millimetres.


This measurement is an important piece of information that we need to deliver the very best vision in your new glasses.


We do encourage you to ask your optician for your PD measurement. If your optician is reluctant to give you this, you’ll be pleased to hear that it is easy enough to measure yourself. Please see our topic on measuring your PD.



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