Anatomic characteristics of primary acquired nasolacrimal duct obstruction: a comparative computed tomography study.

ABSTRACT:

Background

Studies of local anatomic characteristics of primary acquired nasolacrimal duct obstruction (PANDO) are important for understanding the etiology of PANDO and guiding surgical treatment. The purpose of this study was to review computed tomography (CT) scans to identify the anatomic differences in the obstructed and unobstructed sides of PANDO patients as well as in control patients in a Chinese population.

Methods

In this retrospective comparative observational study, the CT scans of 126 PANDO patients were reviewed. A total of 76 patients who underwent CT examinations for eyeball atrophy or an intraocular foreign body but had a healthy lacrimal drainage system and orbit structure were enrolled as controls. The nasolacrimal canal (NLC) widths, lacrimal sac fossa st

SUBMITTER: Wang W 

PROVIDER: S-EPMC9622439 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature