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Table 2 Procedure success and operating time according to the equipment of endoscopic DCR

From: Endoscopic Dacryocystorhinostomy (DCR): a comparative study between powered and non-powered technique

  Overall Powered drill Kerrison punch p value
(n = 32) (n = 34)
Success rate 89.39 % 90.91 % 87.88 % 0.827
Operating time (Minutes) Range 24–210 24–210 30–125 0.0001
Mean 99.75 125 75