Muren Half Rim Rectangle Frame(45 mm

Using the included eye chart,begin by adjusting your left aye by turning the dial until the chart come in to focus.Next adjust your right eye.In case 2 easy you have instant replacement glasses that are ready to use!As you move the dial you are actually adjusting the power of the lenses untill you see clearly!Since dial/vision eyeglasses are fully adjustable,they are the ONE pair that you can readjust to become reading glasses.It 's like having 2 pair of glasses in one!.