Have you ever started looking at Radiation Protection Glasses and then wondered – Which Glasses will give me the best fit? We’ve gotten that question a few times and even created different groupings of glasses on our website for small faces, medium faces, large faces, and x-large faces. But we still get the question every once in awhile as to what puts the frame in which classification? So hope this helps!
In general. the size of glasses should be based on the width of the glasses. In times past we have used only the eye size. If you measure your face, temple to temple, you’ll get your width, and in most cases can match that width with a pair of glasses width. The temple arm length is larger for the frames when the size of the frames go up
How to know the width of your glasses if it’s not indicated…Here is a simple formula that works great with glasses that are flat or straight across the front.
Eye Size x 2, PLUS the bridge, PLUS 4.5mm = width of frames in mm.