Interpupillary Distance in Pediatrics?

The investigation showed that the mean value of IPD is 60.5 +/- 2.4 cm, and the mean value of NC/D ratio is 4.95 +/- 2.28 prD. Mean IPD of 5.1 cm in 5-year old children increases to 6.3 cm in adult over 20. In adulthood, IPD remains the same, i.e. 6.3 cm. Our study showed that the NC/D ratio is stable during lifetime.

Does interpupillary distance change with age?

Since pupillary distance changes with physical development, a growing child's measurement will likely change over the years. But once reaching adulthood, very little change in our skull shape takes place, and pupillary distance remains constant.

What is my interpupillary distance?

What Is Pupillary Distance? PUPILLARY DISTANCE (PD) measures the distance between the centers of your pupils. This measurement is used to determine where you look through the lens of your glasses and should be as accurate as possible. The average adult's PD is between 54-74 mm; kids' are between 43-58 mm.