Nasolacrimal Duct Obstruction Treatments

Nasolacrimal duct obstruction occurs when the narrow channel that drains tears from the eye into the nasal cavity becomes blocked, causing persistent tearing, infection risk, and significant discomfort. The primary surgical remedy is dacryocystorhinostomy, a procedure that creates a new drainage opening between the lacrimal sac and the nasal cavity, and researchers are actively comparing the traditional external approach — which requires a small skin incision — against endoscopic techniques performed entirely through the nose and leaving no external scar. Central questions in the field concern whether adjuncts like mitomycin C, an anti-scarring agent applied during surgery, meaningfully improve long-term patency rates, and how best to manage more complex cases involving canalicular stenosis or obstruction present from birth.

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Keywords

DacryocystorhinostomyEndoscopicExternalNasolacrimal Duct ObstructionCongenital Nasolacrimal Duct ObstructionLacrimal Drainage System