It represents the horizontal width of each lens at the widest point of the frame.

It is the main reference for glasses size

The part of the frame that rests on the nose and connects the lenses (corresponds to the distance between the lenses).

Indicates the vertical height of the lens at its highest point.

This measurement is particularly relevant for progressive and multifocal lenses.

The temple length is measured in its entirety, from the tip to the connection with the front of the glasses.