Blog | Optical Industry Insights, Guides & Tools for Opticians

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…

A practical guide for opticians and optical shop owners on evaluating and integrating eyewear customization tools, from digital measurement to freeform lenses and 3D-printed frames.

Photo-based PD/SH measurement is the technical foundation that makes online prescription eyewear viable, and how it fits a digital retail workflow.

Complete prescription PPE guide for safety managers: ANSI Z87.1 requirements, OSHA compliance, accurate remote measurement, and program implementation strategies for distributed workforces.

Optical measurement in eyewear is shifting toward non-contact, image-based techniques and integrated digital workflows. One market-research estimate puts the global optical measurement market at $4.6 billion in 2024 (8.7% CAGR), driven by e-commerce eyewear growth and demand for personalized lenses. Photo-based solutions now enable remote PD and segment height measurement for distributed PPE programs and online retailers.

Discover why accurate PD and SH measurements are essential for visual comfort, lens performance, and prescription eyewear fit. Learn measurement standards and tolerances.

Remote optical measurements made simple. Capture PD, Dual PD, and Segment Height from a photo and streamline eyewear and PPE fitting with Optogrid.