How do you do a Dacryocystogram?
A thin probe is placed into the opening of tear duct in the medial portion of the lower eye lid. A small amount of fluid is injected through the tear duct and X-ray images are taken. During injection the fluid may cause some trickling in the back of the mouth and there may be a bitter taste in the mouth.
When is a Dacryocystography performed?
Dacryocystography is used to diagnose the condition causing problems with your tear duct. This is a minimally invasive procedure that is performed on an out-patient basis.
What does Dacryocystography mean?
Dacryocystography (DCG) is a diagnostic test for imaging the lacrimal apparatus. Contrast is injected into the lacrimal system, outlining the canaliculi and sac, and thereby identifying the site of obstruction.
What is CT Dacryocystography?
CT-dacryocystography for nasolacrimal duct obstruction following paranasal sinus surgery.
What is a DCG test?
Dacryocystography (DCG) is a fluoroscopic contrast examination of the nasolacrimal apparatus. The nasolacrimal duct is cannulated enabling iodinated contrast to be instilled into the nasolacrimal system.
Is DCR surgery necessary?
A dacryocystorhinostomy (DCR) is a surgery that creates a new path for tears to drain between your eyes and your nose. You may need this surgery if your tear duct has become blocked.
What is a tear gland?
The tear glands (lacrimal glands), located above each eyeball, continuously supply tear fluid that’s wiped across the surface of your eye each time you blink your eyelids. Excess fluid drains through the tear ducts into the nose.
What does Dacryo mean?
Dacryo-: A combining form denoting tears, as in dacryocyst (tear sac) and dacryocystorhinostomy (surgery to open up a tear duct). From the Greek dakry meaning “a tear.”
What do the lacrimal ducts do?
The lacrimal duct system transmits tears from the surface of the eye to the nasal cavity. Tears enter the duct system at the lacrimal punctae and conduct through canaliculi within the eyelids. The canaliculi drain into the lacrimal sac.
What can you not do after DCR surgery?
After a DCR procedure we generally advise patients not to fly for 2 − 3 weeks, to avoid hot drinks for 36 hours, and not to blow their nose for 2 weeks. Patients should not undertake strenuous exercise for at least ten days, and should try to sleep with their head elevated on an extra pillow if possible.
How successful is DCR surgery?
Some patients with chronic symptoms and a history of different forms of lacrimal duct surgery reported their symptoms to have lasted for several years. External DCR in the present study has a success rate of 82.8%. The success rate of external DCR in the literature has been reported to lie between 80% and 99% [13–17].
Which gland is responsible for tears?
lacrimal glands
The tear glands (lacrimal glands), located above each eyeball, continuously supply tear fluid that’s wiped across the surface of your eye each time you blink your eyelids. Excess fluid drains through the tear ducts into the nose.