Management of lacrimal drainage system obstruction

Abstract

Lacrimal outflow obstruction is a common disease,which can be divided into congenital and acquired lacrimal obstruction according to the etiology.The site of obstruction can be divided into superior lacrimal passage obstruction (lacrimal punctum,canalicular and common canalicular) and lower lacrimal passage obstruction (lacrimal sac and nasal lacrimal duct).In recent years,with the continuous development and improvement of the laser,endoscope,and a variety of biological materials,treatment of lacrimal duct obstruction tends to be diverse.The traditional methods are usually done by conservative treatments like probing and external dacryocystorhinostomy.Recently,new lacrimal stents and lacrimal endoscopes are used more and more in lacrimal duct obstruction.In summary,various methods have their advantages and disadvantages,which require surgeons to evaluate the condition and choose the best method. Key words: Larcrimal obstruction ; Probing; Dacryocystorhinostomy ; Endoscope