Objective: To explore the safety and feasibility of Mitomycin C (MMC) in dacryocystorhinostomy(DCR).

• 目的:探讨丝裂霉素C(Mitomycin C,MMC)在泪囊鼻腔吻合术(Dacryocystorhinostomy,DCR)中应用的安全性和可行性。