There are many aspects of rhinoplasty that contribute to function and aesthetics. Functionally, rhinoplasty can require a septoplasty, or correction of the internal or external nasal valves. Cosmetic rhinoplasty can focus on changing the overall size and shape. The goal is to perfect the small intricacies of nasal appearance.
A functional rhinoplasty is performed to improve breathing through the nose. Occasionally, these operations can also change the appearance of the nose, but the primary goal is to improve breathing.
An aesthetic rhinoplasty is one performed to change the appearance of the nose to improve attractiveness.