Abstract
Objective:To investigate the influence of conventional STI and endoscopic STI on clinical effects and safety of patients with chronic dacryocystitis. Method:One hundred and ten patients with chronic dacryocystitis were chosen in the period in our hospital and randomly divided into two groups including conventional group（55 patients） with conventional STI and endoscopy group（55 patients） with endoscopic STI. The improvement rate of epiphora symptoms, ocular surface symptoms score before and after treatment, operation time, intraoperative VAS score and postoperative complication rate of both groups were compared. Result:There was no significant difference in the improvement rate of epiphora symptoms between two groups（P>0.05）. The ocular surface symptoms score after treatment of endoscopy group were significantly less than conventional group（P<0.05）. There was no significant difference in the ocular surface symptoms score after treatment between two groups（P>0.05）. The operation time and intraoperative VAS score of endoscopy group were significantly less than conventional group（P<0.05）. The postoperative complication rate of endoscopy group were significantly lower than conventional group（P<0.05）. Conclusion:Conventional STI and endoscopic STI in the treatment of patients with chronic dacryocystitis possess the same clinical effects; but endoscopic STI application can efficiently reduce operation difficulty, relieve intraoperative pain and prevent postoperative complications.
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