Khalid Waliullah, Muhammad Dawood Saleem, Bakht Aziz, Mohammad Mujeeb, Nisar Akber Khan, Najaf Abbas.
Comparative Outcome of Endoscopic Versus External Dacryocys to Rhinostomy in patients of Nasolacrimal Duct Obstruction.
Pak J Med Health Sci Jan ;13(1):123-5.

Aim: To compare the success rate of external and endoscopic dacryocystorhinostomy in patients with nasolacrimal ductobstruction. Study design: Comparative study Methods: The patients were divided in two groups for comparison. The success rate of endoscopic group was better (95%) as compared to the external group(78.3%) with the endoscopic group having the advantage of absence of an external facial scar. Data was entered and analyzed with SPSS version 17. Quantitative variable like age was presented by calculating mean and standard deviation. Qualitative variables were presented by calculating frequencies and percentages. Results: In this study out of the 120 patients, 89 (74.2%) were females and 31 (25.8%) were males. we compared two groups of lacrimal sac surgery. Group 1 underwent external dacryocystorhinostomy and group 2 underwent endoscopic dacryocystorhinostomy. Group 1 was operated by ophthalmologist at Lahore General Hospital Lahore, while group 2 was operated by the ENT department at Lahore General Hospital.

PakMediNet -Pakistan's largest Database of Pakistani Medical Journals - http://www.pakmedinet.com