It is very important to understand the measurements of your frame as it is crucial for the right fit and comfort. Most of the frames provide the measurements on the inside of the frame, normally on one of the arms and inside the bridge of the frame.
The measurements of a frame are generally written in the following format
The numbers on the frame can be described as
52 – Width of the lens in millimeters (mm)
18 – Width of the bridge in millimeters (mm)
140 – Length of the arm or temple in millimeters (mm)
The following pictures highlight the frame measurements in detail
