Nasolacrimal duct obstruction (NLDO) is a common event in clinical practice. The authors, all members of the Italian Society of Rhinology, analysed 100 cases from different ENT Departments. The causes of NLDO, according to the etiology, can be divided into two classes: idiopathic primary acquired nasolacrimal duct obstruction and secondary. The aim of the study was to describe an association between the sign and symptoms of chronic rhinosinusitis and a complaint of epiphora.
1. Nemet A.Y., Vinker S. - Associated morbidity of nasolacrimal duct obstruction - a large community based case-control study. Graefes Arch Clin Exp Ophthalmol., 2014;252(1):125-130. doi: 10.1007/s00417-013-2484-3. Epub 2013 Oct 22.)| false
8. Mauriello J.A. Jr, Palydowycz S., DeLuca J. - Clinicopathologic study of lacrimal sac and nasal mucosa in 44 patients with complete acquired nasolacrimal duct obstruction. Ophthal Plast Reconstr Surg., 1992;8(1):13-21.