<prompt> A two months old child presents with epiphora and regurgitation. The most probable diagnosis is:Mucopurulent conjunctivitisBuphthalmosCongenital dacryocystitisEncysted mucocele  <response>: C i.e. Congenital dacryocystitis Congenital chronic dacryocystitis occurs in infants because of failure of nasolacrimal duct to open into the inferior meatus of the nose, which normally occurs about third week of life. It presents with constant watering epiphora of one eye Q and is followed by the regurgitation of the pus through the puncta. Q 