Effect of mitomycin C on endoscopic dacryocystorhinostomy.

Objective: The objectives of the study were to retrospectively analyze the efficacy of intraoperative mitomycin C (MMC) in endoscopic dacryocystorhinostomy (END-DCR) and compare it with external dacryocystorhinostomy (EXT-DCR).

Methods: For the comfort of the patients, the procedures were performed under general anesthesia. Intraoperatively during the END-DCR, we applied a cotton pledget soaked in a 0.