Endoscopic Endonasal Dacryocystorhinostomy (Endonasal DCR)

Commonly used for acquired nasolacrimal duct obstruction or recurrent dacryocystitis in adults, or when previous probing/intubation treatments have been unsatisfactory. The decision considers factors such as the location and extent of the obstruction, nasal cavity anatomy and accompanying inflammation, previous treatment history, imaging results, overall health, and anesthesia tolerance.