Ophthalmology – MCQ 12 – Mucin layer tear film deficiency

Mucin layer tear film deficiency occurs in:
a) Keratoconjunctivitis sicca
b) Lacrimal gland removal
c) Canalicular block
d) Herpetic keratitis

Correct answer : a) Keratoconjunctivitis sicca

Mucin synthesising goblet cells are destroyed in Keratoconjunctivitis sicca caused by trachoma and ocular pemphigoid

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Tear film – Layers and formation

Tear film is composed of 3 layers. They are: Mucinous layer Innermost layer Mucin is secreted by conjunctival goblet cells...

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