To make the nose narrower in the bony portion
The upper part of the nose between the eyes is constructed of bone and has no flexibility. If this area is too broad, it can be slimmed down by cutting the bones at cheek level and them moving them closer together. These bones must be moved equally or the nose will be crooked. Also, if the bone is not cut close to the cheek, an unappealing "step" will occur on the side of the nose.
