Endoscopic dacryocystorhinostomy is a type of surgery sometimes used to treat blocked tear ducts in adults. It is rarely used in children. During this procedure, the surgeon inserts a thin fiber-optic light device through the tear duct opening (punctum) at the inner corner of the eyelid. This allows the surgeon to see where the tear duct is supposed to exit inside the nostril.
Next, the surgeon inserts an endoscope, a thin tube with a tiny camera on the end, into the nostril. An incision is made at the point where the fiber-optic light shines through the blocked tear duct. The incision opens a new passageway between the tear duct sac and the nasal cavity. The incision is done through the endoscope inside the nostril. There is no visible scarring after surgery.
Pterygium (pronounced tur-IJ-ee-um) is a common eye condition that affects people who spend a lot of time outdoors. Because it often affects surfers, it is also known as surfer's eye. It can affect anyone, though, even children who don’t wear sunglasses outside.
People with pterygium have a growth of pink, fleshy tissue on the white of the eye. The growth usually forms on the side closest to the nose and grows toward the center of the eye.
Pterygium is a noncancerous lesion that usually grows slowly...
This procedure may be done as an alternative to a standard dacryocystorhinostomy, which creates a new drainage canal and leaves a small scar.
Laser dacryocystorhinostomy uses an endoscope that also contains a laser, which is an intense, narrow beam of light that can cut through body tissues. The laser in the endoscope makes a hole in the nasal bone. This creates a connection between the tear duct sac and the nasal cavity.
Compared with similar types of surgery, laser dacryocystorhinostomy: