Frame size is determined by the three key measurements found inside the frame arm: lens width (from 31-60mm), bridge width (from 12-31mm), and arm length (from 115-155mm).
Your lens height (mm)
46
Lens height is essential for multifocal prescriptions, such as Progressives, which require a minimum measurement of 28-30mm. They are also recommended for Rx sunglasses.
The Longford from Main + Central is everything you want. The slim, round metal half-frame has slender, shaped arms, with the brand's iconic geometric symbols at the acetate tips. Adjustable nose pads provide long-wearing comfort.