What is Pupillary Distance (PD)?
PD is the distance in millimeters between the centers of your pupils. PD measurement is used to make sure your lenses are optically centered, and it determines where you will look through the lenses of your glasses. It’s important that this measurement will be as accurate as possible for an optimal experience when buying glasses online.
👉The normal range for an adult PD is 54-74 mm
👉For kids’ glasses, the normal PD range is 43-54 mm
Generally speaking, we all have two possible PD measurements. The first one is for the far PD which is important for distance and is used in single vision lenses, for progressives and for office lenses. The second is near PD, which is for close-range vision and is important for bifocals and reading glasses.
Sometimes, our eyes have differing PD values from each other, meaning that the distance between your pupil and your nose on one side can vary from the other. This can hold true for both near and far PD measurements.
Important: Your prescription may have two PD measurements, both of which are important for multifocal orders.