Quantification of Nasolacrimal Duct Obstruction Length and Its Relationship with Surgical Outcomes.

ABSTRACT: Background/Objectives: Although the outcomes of endoluminal lacrimal duct recanalization (ELDR) for nasolacrimal duct (NLD) obstruction are associated with the obstruction length, NLD obstruction has not been quantified. In this study, we aimed to quantify the obstruction length using a calibrated dacryoendoscope and investigate its relationship with surgical outcomes following endoscopic recanalization of the lacrimal passage. Methods: We retrospectively analyzed the eyes of patients who underwent ELDR using a calibrated dacryoendoscope at our institution between January 2023 and February 2025. Patients with dacryocystitis detected during preoperative irrigation testing were excluded. A lacrimal tube was placed for 2 months after recanalization, and we used the calibrated da

SUBMITTER: Ueta Y 

PROVIDER: S-EPMC12842283 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature