It also helps to know what those numbers mean. 49 is the width of your lens. I think it's measured at the widest part. 20 is the width of the bridge - the distance between the two halves of the frame. 135 is the length of a temple when straightened out.
So, for instance, if your temples feel too short, you'd look for a larger size like 140 or 145. The bridge width can vary with lens width, so that a smaller lens will often have a wider bridge. Another important measurement is total width (the distance between the two temples), which needs to accommodate the width of your head. One measurement that isn't recorded is the width past the outer edge of the lens, whose purpose is to increase the total width. That's how a frame with, say, a 42mm lens and a 22mm bridge can fit a man with a fairly wide head. --~--~---------~--~----~------------~-------~--~----~ Check us out at the oft-updated http://glassyeyes.blogspot.com! You received this message because you are subscribed to the Google Groups "GlassyEyes" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/glassyeyes?hl=en -~----------~----~----~----~------~----~------~--~---
