The endoscopic endonasal dacryocystorhinostomy surgery which includes fistulization creating a direct opening of the lacrimal sac into the nasal cavity may relieve the symptoms the operative approach to the sac in endoscopic dacryocystorhinostom is through the nose endoscopes are used in this approach. External dacryocystorhinostomy was described in early 20th century the introduction of nasal endoscopy and endoscopic sinus surgery in the 1980s paved the way for a transnasal endoscopic approach to lacrimal system this article will review the indications and surgical techniques used for endoscopic dacryocystorhinostomy
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