MCQs - Conditions of the Lacrimal Secretory and Excretory Systems Flashcards
The glycocalyx
a. is an antimicrobial protein that binds and destroys bacteria
b. allows binding of the tear film mucins to the corneal epithelial cells
c. is produced by the meibomian glands in the eyelid margins
d. is an immune protein found in the aqueous portion of the tear film
The glycocalyx
b. allows binding of the tear film mucins to the corneal epithelial cells
Meibomian glands produce
a. tear mucins
b. tear lipids
c. tear film immune proteins
d. aqueous tears
Meibomian glands produce
tear lipids
Keratoconjunctivitis sicca is diagnosed by the presence of compatible clinical signs and a Schirmer Tear Test (STT-1) reading of
a. >15mm/min
b. <15mm/min
c. <10mm/min
d. <5mm/min
Keratoconjunctivitis sicca is diagnosed by the presence of compatible clinical signs and a Schirmer Tear Test (STT-1) reading of
c.<10mm/min
Rose Bengal will stain a cornea when
a. tear film mucin is absent
b. the Schirmer tear test is <5mm/min
c. tear film lipid is absent
d. pathogenic bacteria are present
Rose Bengal will stain a cornea when
a.tear film mucin is absent
The lacrimal gland is innervated by
a. parasympathetic nerve fibres running with the oculomotor nerve
b. sympathetic nerve fibres running with the oculomotor nerve
c. sympathetic nerve fibres running with the optic nerve
d. parasympathetic nerve fibres running with the facial nerve
The lacrimal gland is innervated by
d.parasympathetic nerve fibres running with the facial nerve
Drug-associated keratoconjunctivitis sicca has been reported with
a. topical pilocarpine
b. oral cyclosporine
c. oral sulphonamides
d. oral carprofen
Drug-associated keratoconjunctivitis sicca has been reported with
c.oral sulphonamides
The Jones 1 test is a test of
a. tear film mucin presence
b. nasolacrimal patency
c. corneal sensation
d. lacrimal gland innervation
The Jones 1 test is a test of
b.nasolacrimal patency
Dacryops is
a. a cyst of the canaliculus
b. a cyst of lacrimal gland secretory tissue
c. a cyst of the maxillary bone
d. a cyst of the nasolacrimal duct
Dacryops is
b.a cyst of lacrimal gland secretory tissue
The most common cause of nasolacrimal system obstruction in the cat is
a. foreign body obstruction of the nasolacrimal duct
b. atresia of the nasal punctum
c. atresia of the nasolacrimal duct
d. symblepharon obstruction of the nasolacrimal punctae
The most common cause of nasolacrimal system obstruction in the cat is
d.symblepharon obstruction of the nasolacrimal punctae
Third eyelid gland surgical excision is indicated in
a. chronic epiphora
b. scrolled cartilage
c. gland prolapse
d. gland neoplasia
Third eyelid gland surgical excision is indicated in
d.gland neoplasia
