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목적 : We first examined the association of ocular refractive error with allergic conjunctivitis in school children, and then examined this association in children attending a suburban school and an urban school.
방법 : We enrolled 426 children attending a primary school in a suburban area and 550 children attending a primary school in an urban area which had a higher level of air pollution. Allergic conjunctivitis was defined as the diagnosis of this condition at any time during a child’s life. The ophthalmic examinations included measurements of visual acuity and refraction, and a slit lamp examination. Skin prick tests were also performed at each school during 2018. The significance of associations was determined by calculation of odds ratios (ORs) and 95% confidence intervals (CIs).
결과 : Astigmatism (increase of 1 cylindrical diopter) was associated with allergic conjunctivitis in children overall (OR = 1.287, 95% CI = 1.010 to 1.642) and in urban children (OR = 1.440, 95% CI = 1.056 to 1.964), but not in suburban children (OR = 1.031, 95% CI = 0.671 to 1.548). Allergic conjunctivitis also had a higher prevalence among ㅕchildren attending the urban school. The urban school had higher levels of air pollutants than the suburban school. Skin prick tests indicated that the major allergens in children with allergic conjunctivitis were house dust mites and various types of pollen.
결론 : Astigmatism is associated with allergic conjunctivitis in children attending an urban school, but not a suburban school. This result may be explained by a higher level of air pollution at the urban school.
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