Abstract: Chronic dacryocystitis is a common lacrimal disorder caused by the obstruction or stenosis of nasolacrimal duct. Currently, there is no effective drug therapy for chronic dacryocystitis and the purpose of different treatment methods is to relieve obstruction and rebuild drainage. We review the literature and compared seven kinds of methods for the treatment of chronic dacryocystitis. It is believed that endoscopic endonasal dacryocystorhinostomy is more effective and less invasive for the treatment of chronic dacryocystitis. With the help of dacryoendoscope, we can observe the inside of lacrimal duct and probe through the obstruction or stenosis area and intubation of lacrimal stent may also help to achieve a better outcome. We should conduct personalized treatment according to the specific situation of the patient in clinical practice. (Int Rev Ophthalmol, 2021, 45: 172-176)

Key words: chronic dacryocystitis, treatment methods, nasal endoscope, dacryoendoscope