This is the distance between your pupils in millimeters. It is critical for aligning the optical center of the lens with your eyes. While many online tools from retailers like Zenni Optical exist, having it professionally measured prevents distortion, especially for high-power or progressive lenses.
Buying glasses in 2026 is no longer just a functional necessity; it’s a high-tech blend of personal health, advanced optics, and individual style. Whether you’re dealing with the rising "epidemic" of digital eye strain or simply updating your look, this guide breaks down every step to ensure your next pair is both stylish and scientifically accurate. 1. The Foundation: A Reliable Prescription need to buy glasses
The Complete 2026 Guide to Buying Glasses: From Prescription to Perfect Pair This is the distance between your pupils in millimeters