The distance between your pupils. This is critical for aligning the optical center of the lens with your eyes. 2. Choosing Frames by Face Shape
The length of the arms that go over your ears (typically 120–150mm). buy eye frames
Buying eye frames is a balance of medical necessity, physical comfort, and personal style. To get the best results, you need a current prescription and an understanding of how frame geometry interacts with your face. 1. Essential Measurements The distance between your pupils
The horizontal width of one lens (typically 40–62mm). 52 □ 18 140):
Before shopping, look at the inside of your current well-fitting glasses. You will likely see three numbers (e.g., 52 □ 18 140):