Spectacles Direct
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Pupilary Distance (PD)

What is my PD?

Your PD or pupillary distance is the distance between the centres of your pupil in each eye.

How do I get it?

Your pupil distance is taken at the time of your examination however the optometrist is not obliged to give you this. You can request your PD from them, but it is at their discretion if they give it to you. It is possible they may charge you for this information.

  • If the PD has been entered onto your prescription it can appear as a single number, e.g. 63mm or monocular number e.g. R31mm / L32mm
  • If you do not know your PD we can use the national average at the time of order.
  • If you have a high prescription or just want to make sure the PDs are 100% accurate you can send us a pair of existing glasses.
  • The PD doesn’t change so don’t worry about sending them to us. All you have to do is e-mail or call us and we won’t process the order until we receive your glasses. Your glasses will be posted back to you with the brand new pair.

Measuring your own Pupillary Distance:

If you have an I-phone or android phone there is an app by Sunmore systems called ‘pupil meter’. This can be searched for in the relevant market or you can follow the link:


Follow the instructions closely and ensure there is good lighting.

What if my prescription is too strong:

If your prescription is out of range compared to our drop down options don’t worry! Give us a call and we will be able to help and quote based on your specification. Part of the process will normally mean sending us a pair of existing glasses, an old pair, which we can scan to get your pupil measurement. We will send these back with your new pair.