Intubation of the Nasolacrimal Duct

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The purpose of intubation of the nasolacrimal duct is to provide an indwelling stent that will maintain patency and continuity of the system during healing and, in some case, in the long term to prevent progressive tissue fibrosis. Several techniques have been described for nasolacrimal duct intubation. In this article, four commonly used techniques, namely, Crawford tube insertion, Ritling tube insertion, Eagle Vision monostent monocanalicular stent insertion, and Quikert tube insertion are described.

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