PD stands for PUPILLARY DISTANCE. The PD is the distance from the centre of one pupil to the centre of the other. (The pupil is the black spot in the middle of your eye). This measurement is used to ensure proper lens placement within your spectacle frames. If this measurement is not on your prescription please call your opticians and they will be able to provide you with these details.
Most optical stores will measure it for you in under a minute. If however for any reason you are not able to obtain this measurement don't worry!! We use an average PD measurement of 63mm for distance and 60mm for reading which has been set as standard by our Dispensing Opticians.
We can also obtain this measurement from an existing/old pair of glasses. If you send them to us we will be able to get the PD at a small cost of £10.
All you need is a mirror and a ruler. You can carry this out yourself or alternative you can ask a friend or family member to take this measurement for you.
1.Look straight ahead into the mirror/directly in your measurers eyes ( sitting about an arms length away)
2. Using a ruler held against your forehead and bridge of your nose place the zero mark of the ruler at the centre of one pupil
3. Write the measurement of the centre of the other pupil ( please note the measurement in millimetres).
Repeat these steps 2-3 times to ensure an accurate measurement has been obtained.
Most PD's range between 55-75mm.
Make sure you are looking straight at all times.