Lens width
The horizontal width of one lens at its widest point.
THE FIT EDIT
A well-fitting frame feels easy from the first wear. Start with the three numbers on your current pair, then use them as a useful point of reference - not a rule.
Read your frame size
YOUR QUICK REFERENCE
Most frames carry a set of three measurements on the inside of an arm. They describe the lens width, bridge width, and temple length in millimeters.
The horizontal width of one lens at its widest point.
The space between the two lenses, where the frame rests on your nose.
The length of the arm from hinge to ear.
A BETTER WAY TO CHOOSE
If your favorite pair sits comfortably, its measurements are the most helpful place to begin. Compare the three numbers with the frame you are considering, then think about the overall width and the shape you enjoy wearing.
Prefer a little more presence? Explore a wider silhouette. Want a quieter profile? Look for a more compact frame. Personal preference is part of fit.

THINK IN PROPORTION
Frame width changes the impression a style makes. A narrower silhouette can feel more discreet; a wider one can create a bolder line. The best choice is the one that feels balanced and comfortable to you.
STILL DECIDING?