title: Atresia of the nasolacrimal orifice in two thoroughbreds.
abstract: Two cases of bilateral atresia of the nasolacrimal orifice are described. The presenting sign was a persistent ocular discharge, clear in the one case and purulent in the other. Treatment by the creation of a fistula between the distal extremity of the blind ending duct and the nasal cavity was successful in both cases.
mesh_terms: D000818:Animals; D006734:Horse Diseases / Q000151:congenital* / Q000601:surgery; D006736:Horses; D007765:Lacrimal Apparatus / Q000002:abnormalities*; D009301:Nasolacrimal Duct / Q000002:abnormalities* / Q000601:surgery