Eye-wear Size Chart
Sunglasses & Eyeglasses Size & Fit Guide by Shopbyus.com
How to measure your eye-wear?
Take a look a this picture below to understand what the numbers means in the size chart. 
The first 2 numbers gives you the size of the lenses.
The 2nd 2 numbers give you the size of the bridge
The lest 3 numbers the size of the Temples.
Example 54-18-125 will be like that 54mm is the size of the Lens, 18mm is the size of the Bridge,125mm is the size of the Temples
