Endoscopic-Guided Single Self-Linking of Stents

Abstract

External dacryocystorhinostomy (DCR) is a commonly done surgical procedure for treatment of nasolacrimal duct obstructions. Although the success rates are high, the literature reports the failure rates to range from 1 to 10 % [1, 2]. Among the causes of failure, the most common ones include occlusion of the rhinostomy by either cicatrix, common canalicular obstruction, ostium granuloma, or synechiae [3–5]. The aim of a DCR surgery is therefore twofold, not only to successfully create an ostium but also to take steps to prevent its reclosure. One such step is the use of bicanalicular stents.