EEDCR is performed in patients having constant watering form the eyes (epiphora). The watering is because there is some obstruction in the drainage pathway of the tear fluid. Usually the blockage is in the lacrimal sac or nasolacrimal duct. The Blockage is due to Chronic stenosis of the nasolacrimal duct which can be congenital or acquired.

Endoscopic Endonasal Dacryocystorhinostomy is highly rewarding surgery for management of chronic dacryocystitis .The surgery is scar less whereas in external DCR there is a scar formation.. It is simple but skillful. The bleeding in the surgery is less as compared to externally done DCR.

Moreover in external DCR the medial canthal ligament has to be excised to approach the lacrimal sac which causes some problem in the lacrimal pump whereas in EEDCR the sac is approached though nose without even touching the canthal ligaments.