DKNY Eyeglasses DY 4531 3191 Black/White 50-16-135 Frames 。DKNY Rx glasses DY 4531 3191 50 16 135 Discontinued Will have to get lenses changed at your eye doctor Coming from the renowned brand DKNY, DKNY eyeglasses and sunglasses have approximately forty counterparts in the same collection. The ophthalmic collection offered by DKNY is widely recognized to be bold, edgy and eclectic.All are designed by Donna Karan. There are two main styles. One is contemporary frames with rimless shapes and the other is progressive geometrics with luxurious materials.