If you need a new liver or some sort of new organ it can save your life or if you have a tumor etc.
An orthodontist deals with correction of irregular teeth, so he or she can be useful in a dentist clinic or surgery.
surgery, search and rescue, security, entertainment, etc.
Other useful sources of information include hospital and outpatient surgery center web sites
Cardiologist and cardiology surgery could be studied from this useful and infomative link. {| |- | http://www.artemishospital.in/cardiac-surgery-hospital.html |}
For eye surgery they are specially useful. Since lasers are very focused and thin, but still have heaps of energy, they can be used to cut thin layers of a patient's cornea, if you have myopy for instance, with lots of precision. the beam of light is very weak
It is useful when a surgeon is preparing to do a laminectomy (back surgery), usually done to free up nerves which have been impinged upon and are causing pain.
On the website Rhinoplasty4You someone can get information about the plastic surgery rhinoplasty. It is a useful source on what to expect from the surgery and tips on how to pick a surgeon.
The best thing to do is speak with your personal physician about weight-loss surgery options. However, medical websites like webmd may be useful tools.
To find out more about bariatric surgery you can use the following link. It is an easy to understand slideshow with useful information on what to expect before, during and after the procedure. http://www.webmd.com/diet/weight-loss-surgery/slideshow-weight-loss-surgery#getty_rm_photo_of_bariatric_surgery_target_area-_.jpg
http://www.umm.edu/weightloss/success.htm is a great article of a patience success story with this surgery. This is useful because it will answer any questions of doubt you may have or any worries.
There are some online resources such as www.webmd.com and www.mayoclinic.com. However, the most useful and accurate way you can get information on lapascopic gastric bypass surgery is to check with your doctor.
Videos of various kinds of surgery can be found online. They can be difficult to find on many video uploading websites. Youtube has a few but the most useful source is the website MedLIne Plus, which links to various surgery videos.