Wilkie D A, Rings D M
Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Ohio State University, Columbus 43210.
J Am Vet Med Assoc. 1990 May 15;196(10):1647-50.
A proximal nasolacrimal duct anomaly, believed to be congenital, in a bull was repaired by use of conjunctivorhinostomy. Initial attempts at correction, using prolonged nasolacrimal duct catheterization, were unsuccessful. Trephination from the medial canthus to the ventral nasal meatus, combined with long-term catheterization of this new passage, was successful in resolving clinical signs of disease.
一头公牛被认为患有先天性鼻泪管近端异常，通过结膜鼻腔造口术进行了修复。最初尝试使用延长的鼻泪管插管进行矫正，但未成功。从内眦到鼻腹侧鼻道进行环钻术，并对这条新通道进行长期插管，成功解决了疾病的临床症状。
