Tip rhinoplasty is a very effective means of reducing the roundness or bulbousness of a tip - particularly in ethnic patients.
The techniques used will depend on the patient's specific nasal structure and characteristics. The lower lateral cartilages (tip cartilages) can be trimmed and reshaped either with sutures or with grafts to relieve the excess curvature. Regardless of the technique, it is possible to correct the tip without changing the profile.
To get a better understanding of what your nose would look like after surgery, your prospective rhinoplasty surgeon should be able to show you before and after computer simulations. Many rhinoplasty surgeons use computer imaging, and recently 3D rhinoplasty imaging has become available (http://youtube.com/?v=m0-NPaSp9no). This allows patients to preview how their nose might look after surgery from any angle.