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How to dot the pupils on your lenses

Mark your lenses with any marker in just a few seconds to maximize lens replacement success

Eyeglass Lens
Dotting
Sunglass Lens
Dotting
While you're here Let's measure your Pupillary Distance (PD)
PD Calculator

Use a smartphone camera or computer webcam to help calculate your PD, this can be done anywhere.

Option 2
PD Ruler

While we recommend using the PD calculator, you can also do this. Just print, and you can measure your own PD.

Download PD ruler