Association between ambient air pollution and outpatient visits for primary acquired lacrimal duct obstruction in Hangzhou, China.

ABSTRACT:

Background

Primary acquired lacrimal duct obstruction (PALDO) is the most common lacrimal drainage disease in clinics, which can be caused by multiple factors. However, few studies have investigated environmental risk factors contributing to PALDO exacerbation. This study aimed to investigate the potential association between short-term exposure to major ambient air pollutants and outpatient visits for PALDO.

Methods

Data of outpatients with PALDO who visited the Eye Center of the Second Affiliated Hospital, Zhejiang University School of Medicine (Hangzhou, Zhejiang Province, China) from January 1, 2014 to December 31, 2022 were collected. The concentrations of particulate matter (PM₁₀ and PM_2.5), nitrogen dioxide (NO₂), sulfur dioxide (SO

SUBMITTER: Miao Q 

PROVIDER: S-EPMC12515865 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature