AIM:To compare the effect of nasal endoscopic modified nasolacrimal duct retrograde intubation and dacryocystorhinostomy in treatment of chronic dacryocystitis.

METHODS: A retrospective analysis of 51 cases( 53 eyes)of chronicdacryocystitis patients with nasal endoscopic operation. Intubation group had 31 cases 32 eyes, the dacryocystorhinostomy group had 20 cases 21 eyes, the follow-up was half a year.

RESULTS:Endoscopic nasolacrimal tube retrograde intubation: 15 eyes were cured, 12 improved, invalid 5, the cure rate was 47%, with an efficiency of 84%; endoscopic dacryocystorhinostomy: cured 14, improved 5, invalid 2, the cure rate was 67%, with an efficiency of 90%; there was no obvious difference.

CONCLUSION:Endoscopic modified nasolacrimal duct retrograde intubation and endoscopic dacryocystorhinostomy are minimally invasive, rapid healing, good effect, its efficacy is similar, endoscopic retrograde intubation is simple, low price, easy popularization.