Blocked tear ducts are sometimes
cleared using a procedure called intubation. During intubation, two small wire
probes attached to silicone tubes are passed into the upper and lower tear duct
openings (puncta) and down the tear duct drainage system into the nasal cavity.
The wires are removed and the tubes are tied or sewn in place to keep the tear
ducts open. Intubation is usually done as part of a probing procedure in the
general anesthesia. Most babies go home the same day.
From 3 to 16 weeks
after surgery, the person returns to the doctor's office, and the tubes are
removed. Anesthesia is usually not needed when the tubes are taken out.
Each war leaves its own brand of trauma on soldiers.
Amputation was the most common surgery during the American Civil War. World War I brought mustard gas and an epidemic of scarred lungs.
For veterans returning from war in Iraq and Afghanistan, vision problems caused by traumatic brain injury are a growing concern. These veterans have better body armor than soldiers in the past, but they are more likely to be severely shaken by a blast from a homemade explosive device.
About 16% of soldiers...