Dolce & Gabbana™ Angel DG4354 501/87 58 - Black

The first number — the lens size — represents the horizontal width of the lenses. In this case, the openings in the frame for the lenses are 48 mm wide. Generally, the eye size of most eyeglass frames ranges from 40 mm to 62 mm.

The second number — the bridge size — is the distance between the lenses. In other words, it's the size of the "bridge" of the frame that rests on your nose. In this case, the frame bridge is 19 mm wide. In most cases, the bridge size of eyeglass frames ranges from 14 mm to 24 mm.

The third number — the temple length — is the length of the "stems" of the frame, measured from the frame hinge to the back tip of the temple. In this case, the temple length is 140 mm. Temple lengths generally range from 120 mm to 150 mm.