nitrogen-dioxide and Dry-Eye-Syndromes

We evaluated how different degrees of air pollution affect the ocular surface of a cohort of human subjects in Beijing by correlating in-patient test outcomes with tear cytokines. A cross-sectional study involving 221 volunteers was carried out in different districts of Beijing. Air pollution indices were recorded for 7 d (including the visit day). The indices recorded were the air quality index (AQI), which is a dimensionless measure that quantitatively describes the state of air quality, concentrations of particulate matter smaller than 2.5 μm (PM2.5) and 10 μm (PM10), sulfur dioxide (SO

Topics: Air Pollution; Beijing; Cross-Sectional Studies; Dry Eye Syndromes; Humans; Interleukin-6; Meibomian Glands; Nitrogen Dioxide; Particulate Matter; Tears; Vascular Endothelial Growth Factor A

The purpose of this study is to investigate the potential associations between air pollution and dry eye disease (DED). Data of outdoor air pollutants and meteorology as well as outpatient visits for DED were collected. A time-stratified case-crossover approach was used to analyze the associations between ambient air pollutants and outpatient visits for DED. Among the 5062 DED patients studied, 65.45% were female and 34.55% were male. In the single-pollutant model, significant associations were observed between an increase of 10 μg/m

Topics: Adolescent; Adult; Air Pollutants; Air Pollution; Carbon Monoxide; Child; Child, Preschool; China; Cross-Over Studies; Dry Eye Syndromes; Female; Humans; Infant; Male; Middle Aged; Nitrogen Dioxide; Ozone; Particulate Matter; Retrospective Studies; Seasons; Sulfur Dioxide; Young Adult