To assess the efficacy and safety of probing of nasolacrimal duct with Mitomycin-C in adults with primary acquired nasolacrimal duct obstruction.

Adult patients with complaint of watering from eyes usually suffer from blockage of the nasolacrimal duct known as chronic dacryocystitis. the currently accepted gold standard of treatment for this condiotn is dacryocystorhinostomy- a procedure in which a new opening is created in the orbital bones and the lacrimal sac is connected directly to the nasal cavity, bypassing the nasolacrimal duct. however, the procedure is time consuming, uncomfortable for the patient and may need general anaesthesia. the waiting period is long and post operative morbidity is also of significant duration. therefore, office procedures such as probing of the nasolacrimal duct have been explored as these are walk in wallk out procedures and do not need pre or post procedure investigations and hospitalisation. augmentation of probing with mitomycin c irrigation can be done to prevent recurrence of the pathology.

this study is designed to assess the efficacy of probing along with mitomycin c as compared to probing alone in terms of relief of symptoms and prevention of recurrence of disease