Your pupillary distance (PD) is the distance between your pupils; it ensures the correct centration of your Prescription lenses in front of your eyes. On average, the PD in an adult is usually between 60 and 66 millimetres; however, it is advised to get this from your optician or previous spectacles.

Alternatively, you can measure your pupillary distance (PD) yourself using a PD App or a PD Ruler.  Simply take a look at our 
video guide here.

Looking for a PD Rule?

You can purchase this from our website here.