Modified External Dacryocystorhinostomy With Silicone Tube Intubation

Abstract

Background: Different modifications of external dacrocystorhinostomy can be employed to treat obstruction in cases of epiphora. Methods: Interventional study; Sixty adult cases of nasolacrimal duct obstruction were treated with modified external dacrocystorhinostomy with silicone tube intubation. The patients were followed to assess the success rate of the procedure . Instead of suturing the anterior and posterior flaps of lacrimal sac and nasal mucus membrane, a piece of tissue from both structures 0.8 and 1.2 cm respectively was excised. Silicone tube was passed through these into external nostrils Results: Age of the patients ranged from 20 to 60 years , with a male to female ratio of 1.4:1.There were 25 right and 35 left eyes. There was no bilateral case. The follow up period to determine the success and failure was 1 –2 years . Conclusion: Modified External Dacrocystorhinostomy with Silicone tube intubation yields high success rates in cases of epiphora