Atresia of the naso-lacrimal duct in a horse.
D000818:Animals; D002404:Catheterization; D000013:Congenital Abnormalities / Q000601:surgery / Q000662:veterinary; D003231:Conjunctivitis / Q000209:etiology; D006734:Horse Diseases / Q000601:surgery; D006736:Horses; D007765:Lacrimal Apparatus / Q000002:abnormalities* / Q000601:surgery; D013666:Tears