Lacrimal System - Dr. Napier Flashcards
T/F Lacrimal gland is a exocrine gland.
False, it’s endocrine
Lacrimal gland is innervated by CN___.
5
Orbicularis muscle is innervated by CN___.
- damage to this nerve can cause ectropion on the lower eyelid
Jones Test 1 and 2 is to test for what?
lacrimal system potency.
What is the dye that’s use in Jones Test 1 and 2?
fluorescein
Which Jones Test uses irrigation of the canaliculus?
Jones Test 2
What is dacryocystography?
X-ray take for the tear duct after injection of dye that was used to help locate the blockage.
T/F Punctal stenosis is where the external opening of the lacrimal canaliculus is narrowed or occluded.
True
The most common cause for canalicular/duct obstruction is ________.
Idiopathic fibrosis (scarring or thickening)
What are the signs congenital obstruction in babies?
Epiphora(outflow of tears) and mucous discharge
What is another name for Aqueous Dry Eye?
Keratoconjunctivits sicca (dry eye syndrome)
Does Aqueous Dry Eye have reflex tearing while performing the Shirmer’s test?
NO
What is the function of Restasis(Ciclosporin)?
To treat dry eyes by increasing the production of tear
Dacryocystitis is secondary to ________.
Obstruction
Canaliculitis is secondary to ________.
infection