الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Nasolacrimal duct obstruction is a common ophthalmic problem. External dacryocystorhinostomy have been the standard treatment for complete nasolacrimal duct obstruction. Surgical transnasal endoscopic DCR is an alternative technique that avoids the skin scar. This study is meant for comparing the success rates of both external DCR and transnasal endoscopic DCR. One hundred and forty six lacrimal systems of 139 patients were included in this study. Seventy six lacrimal systems (group A) under went external DCR while seventy lacrimal systems (group B) under went transnasal endoscopic DCR. In gp A Complications included; 2 cases of ecchymosis, one case of silicon tube prolapse,2cases of hypertrophied scars, one case of webbed scar, 2cases of granuloma formation and 2 cases of bridging synaechiea. One case showed functional failure and another case showedanatomical failure. Group A showed functional success of 97.4% and anatomical success of 98.6%.In gp B, Complications included; 2 cases of ecchymosis, one case of surgical emphysema, one case of silicon tube prolapse, one case of cheese wiring of puncti by the silicon tube, 9 cases showed granuloma formation at osteotomy site and 4 cases of bridging synaechiea. One case showed functional failure , 4showed anatomical failure. Group B showed functional success of 92.9% and anatomical success of 94.3%.