Pupillary Distance (PD) or interpupillary distance (IPD) is the distance in millimeters from the center of one pupil to the center of the other pupil. This measurement is needed to ensure that the lenses are correctly centered within the frames of your kid's glasses. The industry standard allows for 2-3mm of wiggle room for the measurement without negatively impacting your child's vision.
Often times, the prescription will include the pupillary distance. If it does not:
- Contact your eye doctor to see if they have this measurement on file
- Download our app linked below and it'll take that measurement for you
- If you prefer not to download the app (or the technology is not compatible with your phone), check out our step-by-step video tutorial, then follow the instructions below to measure right at home
If you have additional questions or would like an extra set of eyes on the measurement you are submitting, you can text a picture of the measurement tool next to your child's eyes to (616) 202-5844 and we'd be happy to confirm their PD!