EYEKEEPER BIFOCAL SUNGLASSES - A crescent shape on the bottom part of the lenses have magnification

Nose Bridge Width: 1/2 inches(13mm)

The lenses do not block blue color of online test for color filtering properties

Lens width about 2 3/16 inches (55mm)

Lens width about 2 inches (50mm)

4 Pack Semi-Rimless Metal Blue Light Blocking Readers DS1704 feed-color-Black/Purple/Blue EYEKEEPER BIFOCAL SUNGLASSES - AAcrylic lens, metal frame with spring hinges Block 98% blue light, serious color distortion Frame width about 5 1 2 inches (140mm) Lens width about 2 1 16 inches (52mm) Lens height about 1 5 16 inches (33mm) Bridge(DBL) about 11 16 inches (18mm) Temple length about 5 5 16 inches (135mm)