
What 14,904 Pupillary Distance Measurements Tell Us About Human Faces
Why look at PD at scale? Pupillary distance (PD), the millimetres between the centres of your pupils, is the silent hero behind lens alignment. When PD is off, even a perfect prescription can feel blurry or induce strain. Because Optogrid captures PD remotely, we now have thousands of real-world readings instead of the handful anContinue reading “What 14,904 Pupillary Distance Measurements Tell Us About Human Faces”








