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Does PD Measurement provide Far PD or Near PD?

PD Measurement provides Far PD.


Far PD is the standard measurement used in the manufacture of eyewear.

This measure is essential to ensure correct lens fit and clear vision at a distance.

The terms Far PD and Distance PD are commonly used interchangeably and are identical.

What do Far PD/Distance PD & Near PD mean?

When we talk about PD (Pupillary Distance), we’re referring to the distance between the centers of your pupils — an important measurement for making sure your lenses are perfectly aligned with your eyes.

There are two types of PD to know about:

  • Far PD (or Distance PD): This measures the distance between your pupils when you’re looking at something far away. It’s the value most commonly used for everyday prescription or single-vision eyeglasses.

  • Near PD: This measures the distance between your pupils when you’re focusing on something close up, like when reading a book or using a phone. It’s typically used for reading glasses.

In short, Far PD is for seeing at a distance, and Near PD is for close-up vision.


For most people, the difference between Far PD/Distance PD and Near PD is about 2-3mm.