Frame Size Information
Three frame size information will normally be marked on the temples in millimeters (mm) as unit.
In order to choose the suitable glasses easily, we will provide a total of five frame size information, shown as below : A, B, C, D, E.
(A) Len Width
(B) Len Height
(C) DBL
(D) Temple Length
(E) ETED
The total width of the glasses (E) and the length of the lens (D) are the most important dimensions for choosing a suitable frame. If you choose bifocal or multi-focal lens, you should also pay attention to the lens height (B).