As part of GDPR you can request a copy of any personal data. In the UK this is governed by the ICO, and it’s called Right of Access.
https://ico.org.uk/for-organisations/guide-to-data-protectio...
You get your PD measured at the time you order your glasses. If you never order glasses they'll never measure your PD.
Re:Making My Own Glasses
by icebraining on Friday October 04, 2019 @11:57AM
(#21158903)
Are you assuming they keep records on the PD measurements of clients who didn't actually purchase glasses there? At least at the opticians I've used, I don't think they do.
From Wikipedia[1]:
> In both the UK and most of Canada (excluding British Columbia[5]), the PD measurement is classed as a dispensing tool rather than a part of the actual prescription of the person whose eyes were tested, thus there is no obligation for a PD to be provided on patient request.
[1] https://en.wikipedia.org/wiki/Pupillary_distance