PD Measurement Tool
The Pupillary Distance (PD) is the distance between the centres of your pupils. With this measurement
we can ensure that the optical centres of your lenses are aligned correctly with your pupils to give
maximum comfort and effectiveness.
When you have your eyes tested most opticians will not include your PD measurement on your prescription.
Some opticians will gladly give you your PD measurement if you ask for it, while others won’t give
you your PD measurement.
At ThinLenses.co.uk, we have developed a tool that allows you to measure your PD online and get an
accurate PD measurement within seconds. Just follow these simple steps: