Role of endoscopic dacryocystorhinostomy in treating acquired lacrimal fistulae.

Acquired lacrimal fistula occurs in an improperly and inadequately treated lacrimal sac abscess. This study was done to evaluate the success of endoscopic dacryocystorhinostomy (EDCR) in treating such lacrimal fistula. A retrospective analysis of nine cases of acquired lacrimal fistulae in seven patients, treated by EDCR without any external surgery was carried out. Cessation of epiphora and closure of fistula were considered, successful outcomes. All the nine fistulae closed, and all patients were relieved of their epiphora within two weeks of surgery. It can be concluded that EDCR is effective for treating an acquired lacrimal fistula.