AIM:To evaluate the surgery skill and efficacy of retrograde lacrimal intubation on treatment of chronic dacryocystitis with nasal endoscopic.METHODS:Totally 45 patients(52 eyes) with chronic dacryocystitis in this study received retrograde lacrimal intubation by nasal endoscopic,and the tube was removed after placing 2-3 months.The efficacy was observed after surgery.RESULTS:All operations on the patients were conducted successfully,and no serious complications during and after surgery.41 eyes(79%) were cu...