Eyewear Manufacturing & OEM/ODM Guide

Understanding the small numbers etched on eyeglass frames is crucial for selecting a comfortable, stylish, and perfectly fitting pair. These universal measurements, usually found on the inner temple, decode specific frame dimensions in millimeters, providing a personalized sizing guide. The three core numbers are lens width, bridge width, and temple length.

The first number, **lens width** (e.g., 52mm), indicates the horizontal width of a single lens and significantly influences the frame's ove