Skip to content
Go to the app

Saulo Garcia

I am a seasoned software engineer with over two decades of experience and a deep-rooted background in the optical industry, thanks to a family business. Driven by a passion for developing impactful software solutions, I pride myself on being a dedicated problem solver who strives to transform challenges into opportunities for innovation.
Online Eyewear Measurement: PD, SH, and Frame Sizing Explained

Online Eyewear Measurement: PD, SH, and Frame Sizing Explained

Short answer: Accurate online eyewear fitting depends on three measurements: pupillary distance (PD), segment height (SH), and frame dimensions. PD errors as small as 1mm can cause prismatic distortion in higher prescriptions; SH errors of 2-3mm in progressive lenses routinely cause non-adaptation. This guide explains each measurement, the tolerances that matter clinically, and where digitalContinue reading “Online Eyewear Measurement: PD, SH, and Frame Sizing Explained”
How to Measure PD, Dual PD, and Segment Height with Optogrid

How to Measure PD, Dual PD, and Segment Height with Optogrid

Discover how to accurately measure Pupillary Distance (PD), Dual PD, and Segment Height (SH) using Optogrid with our step-by-step guide. From loading the patient’s photo to verifying and saving measurements, this post covers everything you need to ensure precision in eyewear prescriptions. Learn to evaluate photo quality, choose a reference, mark reference points, and calculate measurements efficiently. Perfect for optical professionals and enthusiasts aiming for the best fit in custom eyewear orders.