title: Nasal-oropharyngoscopy: a simple test to evaluate lacrimal duct function in children.
abstract: Obstruction of the lacrimal drainage system is a common problem in pediatric ophthalmology. We describe a simple office test which allows the patency of the lacrimal drainage system to be visualized.
authors.forename: J A
authors.initials: JA
authors.lastname: Gammon
authors.forename: J P
authors.initials: JP
authors.lastname: Wilmeth
authors.forename: S Q
authors.initials: SQ
authors.lastname: Guo
authors.forename: M
authors.initials: M
authors.lastname: Gemmill
mesh_terms: D002675:Child, Preschool; D019793:Fluorescein; D005452:Fluoresceins; D006801:Humans; D007223:Infant; D007765:Lacrimal Apparatus / Q000502:physiology*; D007767:Lacrimal Duct Obstruction / Q000175:diagnosis*; D009296:Nasal Cavity; D009885:Ophthalmology / Q000379:methods*; D009960:Oropharynx
chemical_list: D005452:Fluoresceins; D019793:Fluorescein