The Rx came back from the lab and the optical center is off 1mm to the outside in both eyes. You can bring in the optical center on both eyes by reducing the bridge width. You have a patient with a small bridge and over extending the nose pad arm is not cosmetically acceptable. Reduce the bridge so you can adjust the nose pads comfortably. The three jaws of this plier engage the bridge from above and below for moderate reduction. For both metal and plastic bridges.