Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Interventional
Official Title: A Comparative Study of Recessive Spherical Headed Silicone Intubation and Dacryocystorhinostomy Under Nasal Endoscopy in the Treatment of Nasolacrimal Duct Obstruction
Brief Summary: To compare the clinical effects between the silicone nasolacrimal intubation under nasoendoscopy and dacryocystorhinostomy on patients with lacrimal duct obstruction.