What Do the Numbers on Eyeglass Frames Mean?

Understanding Frame Numbers

Eyeglass frames often have a sequence of numbers printed on the inside of a temple. These measurements commonly describe lens width, bridge width, and temple length, usually in millimeters. For example, a sequence such as 52-18-140 generally represents those three dimensions.

Why the Numbers Matter

These measurements help shoppers compare a new frame with one they already know fits. Lens width affects overall frame size, bridge width influences how the frame rests on the nose, and temple length helps determine how the frame reaches behind the ears.

Use Measurements, Not Guesswork

Frame numbers are useful, but facial proportions and construction can still affect fit. Treat them as a comparison tool rather than a guarantee. Online shoppers should review the seller's measurements and product photos before ordering.

Wearluxurys provides modern eyewear choices for different styles. Use the numbers on your current comfortable glasses as a starting reference.