| This measurement determines the horizontal length of one lens. The range is 40-62mm. Average size 49-51mm. For sunglasses, bump your average up by at least two millimeters to accomodate for oversized frames. |
This measurement determines the horizontal length of one lens. The range is 40-62mm. Average size 49-51mm. For sunglasses, bump your average up by at least two millimeters to accomodate for oversized frames. |
This measurement determines the horizontal length of one lens. The range is 40-62mm. Average size 49-51mm. For sunglasses, bump your average up by at least two millimeters to accomodate for oversized frames. |
