Measuring Pupillary Distance (PD): A Step-by-Step Guide

PPupillary Distance, PD for short, is simply the distance between the centers of the eye pupils measured in millimeters. This measurement is used to position the lens in the frame.
Here’s how you can measure your child’s PD accurately using a simple method:

You’ll Need:

  • A camera (smat phone, camera…)
  • A personal card (ID, credit card, etc.)

Instructions:

  1. Positioning: Ensure your child’s eyes are on the same level as yours. Maintain a distance of around 27″ (arm’s length) between the camera and your child (see Picture 1).
  2. Place the Card: Place the personal card (back side facing the camera) on your child’s forehead, just above their eyes (see Picture 2).
  3. Take the Picture: Capture a picture, preferably with flash, ensuring clarity and visibility.

Pupillary Distance, PD for short, is simply the distance between the centers of the eye pupils measured in millimeters. This measurement is used to position the lens in the frame. Most kid’s PDs range between 40mm and 54mm. In order to successfully measure your child’s PD you need two things: a camera and a personal card (ID, credit card, bank card, driver’s license etc.). Any of those cards are usually 3 3/8″ (86mm) wide and it is used to compare it with your kid’s PD.

If you have any questions or concerns regarding this process, feel free to contact our customer service team for assistance. We’re here to help ensure your child’s vision needs are met with precision and care!

Picture 1

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Picture 2

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Pupillary Distance (PD) 3

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