How To Measure Glasses Frame Size
There are two ways to measure eyeglasses frame size:
1) Read the tiny lettering on the inside of your glasses. Sometimes the lettering has worn off, or it is too small for you to see even with a magnifying glass. In which case you'll need to
2) Measure your glasses with a millimeter ruler. The eye size is measured from one side of the lens to the other, horizontally, at the widest points. The bridge size is the distance between the lenses at the closest point. The temple size is measured from the tip to the hinge, including the bend.
Almost all eyeglass frames are designed so they can be adjusted. You can take your eyeglass frames to a local optical professional or vision center for an adjustment or read more about adjusting your eyeglasses.