
PD
is the distance between the centre of two pupils when your eyes
are looking at a distance object in the front that are 60 centimetres
away or beyond. It is measured in millimetres (mm). PD measurement
is the important information we need in order to scale the glasses
to your face during E Try-on®. Please make sure to enter a correct
PD.
The average PD is 60mm for women and 64mm
for men.
If there is no Pd value in your prescription, please
remember to ask your optometrist to measure the PD for you when
you visit the optometrist next time.