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 this measurement! If it does not, we always recommend checking with the eye doctor to see if they have this measurement on file. If they do not, you can measure their PD right at home. For reference, most kids have a PD between 42-65mm.

If you're hesitant about measuring, download our mobile app to scan your child's facial measurements (see links below) or you can text a picture of the measurement tool next to your child's eyes to (616) 202-5844 and we can confirm their PD!

MOBILE APP

Download our new virtual try-on app with which includes a PD measurement function. (Compatible with iPhoneX or newer models.)

PD RULER

STEP 1 : Print the below file at actual size using 100% scale on a standard letter (8.5” X 11”) size sheet of paper, or use a measurement tool with millimeters.

CLICK HERE TO PRINT THE PD MEASUREMENT TOOL

STEP 2 : Hold the pupillary distance ruler just below your child’s eyes, keeping it exactly horizontal, and align the ruler’s zero (0) measurement to the center of your’s child’s right eye pupil.

STEP 3 : Try your best to hold the ruler still and ask your child to hold as still as possible, and read the millimeter line that lines up with the center of your child’s left pupil. This is your child’s PD measurement.

STEP 4 : Repeat steps 1 - 3 at least one more time to ensure you get the same pupillary distance measurement. This will ensure the most accurate prescription for your child.

STEP 5 : Please write your PD # on your prescription from your eye doctor. And email to us at orders@jonaspauleyewear.com