Fig. 4 | Scientific Reports

Fig. 4

From: To investigate endoscopic membranous nasolacrimal duct resection combined with retrograde lacrimal stent placement in the treatment of extremely inferior lacrimal duct obstruction

Fig. 4

(a) The probe props up the membranous nasolacrimal duct, and the opening of the nasolacrimal duct of the inferior meatus is observed under the endoscope. (b) the medial wall of the inner nasal segment of the membranous nasolacrimal duct was resected, and the lacrimal duct stent was placed retrograde after sufficient hemostasis. (c) The lacrimal duct stent was removed 12 weeks after surgery, and the degree of epithelialization at the stoma was good under endoscopy.

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