Blue light blocking glasses reduce eye strain

Frame width about 5 3/8 inches(137mm)

Accord with ANSI Z80

Frame width about 5 5/8 inches (142

Frame width about 5 11/16 inches (144mm)

4 Pack Double Color Frame Bifocal Sunglasses SBR2105 feed-color-Black/White/Red Blue light blocking glasses reducePlastic frame with spring hinges Frame width about 5 1 2 inches (140mm) Lens width about 1 3 4 inches (44mm) Lens height about 1 7 16 inches (37mm) Bridge (DBL) about 1 2 inches (12mm) Temple length about 5 5 16 inches (135mm) EYEKEEPER BIFOCAL SUNGLASSES A crescent shape on the bottom part of the lenses have magnification, which is for reading and close up work. And the other parts of the lenses have no magnification,which is for distance viewing.