Ophthalmology Diseases of orbit, Lids and lacrimal apparatus b55cedcf Mucin layer tear film deficiency occurs in - A Keratoconjunctivitis sicca B Lacrimal gland removal C Canalicular block D Herpetic keratitis High-Yield Explanation Also known as sjogrens syndrome or aqueous deficiency dry eye. Ref : ak khurana 6th edition