Skip to content
Go to the app

Saulo Garcia

I grew up inside an optical shop. My mother likes to tell how, as a kid, I would watch eyeglasses being assembled, play with the tools, and draw on the back of service order slips. The family business taught me early what a precise measurement and work done right are worth. I went on to spend more than twenty years as a software engineer, always keeping an eye on the optical world. Optogrid was born where the two meet: digital measurement technology (pupillary distance and fitting heights) built by someone who knows the dispensing counter from the inside.
Digital Pupillometer: How It Works, Accuracy vs Manual, and the Smartphone Alternative

Digital Pupillometer: How It Works, Accuracy vs Manual, and the Smartphone Alternative

A dispensing pupillometer is an optical instrument that measures interpupillary distance (PD) by projecting a coaxial light source onto the cornea and aligning crosshairs with the resulting corneal reflex in each eye. A digital model adds an electronic scale readout, eliminating the manual sliding cursor and giving the dispenser a precise numeric value for bothContinue reading “Digital Pupillometer: How It Works, Accuracy vs Manual, and the Smartphone Alternative”
Average Pupillary Distance: Normal PD Values by Age, Gender, and Ethnicity

Average Pupillary Distance: Normal PD Values by Age, Gender, and Ethnicity

For most adults, a normal pupillary distance falls between 50 mm and 75 mm, with the majority of the population clustered between 55 mm and 70 mm. Published clinical research puts the adult mean at roughly 62-63 mm overall, with men averaging about 63.6 mm and women about 61.1 mm. Optogrid’s own dataset of 14,904Continue reading “Average Pupillary Distance: Normal PD Values by Age, Gender, and Ethnicity”