入射(几何)
折射误差
纵向研究
人口学
队列
医学
累积发病率
队列研究
验光服务
折射
儿科
眼科
眼病
数学
社会学
病理
内科学
物理
光学
几何学
作者
Pelsin Demir,Karthikeyan Baskaran,Pedro Lima Ramos,Thomas Naduvilath,Padmaja Sankaridurg,António Filipe Macedo
摘要
Abstract Purpose The prevalence of myopia in Scandinavia tends to be lower than in other parts of the world. This study aimed to investigate the incidence of myopia and its predictors in Swedish children to characterise this trend. Methods A 2‐year longitudinal study was conducted following a cohort of schoolchildren aged 8–16 years. Myopia was defined as a spherical equivalent refraction (SER) ≤ −0.50 D. The study enrolled 128 participants, 70 (55%) females with a mean age of 12.0 years (SD = 2.4). Results The cumulative incidence of myopia during the follow‐up period was 5.5%, and the incidence rate of myopia was 3.2 cases per 100 person‐years. Participants with myopia at baseline exhibited a faster increase in refractive error during the follow‐up period. Likewise, participants with two myopic parents exhibited a more marked change towards myopia, regardless of their initial refractive error. Conclusion In the current study, similar to prevalence, the incidence of myopia was low when compared with other parts of the world. These results lead us to formulate a new hypothesis that the normal emmetropisation process may be protected by low educational pressure practised in Sweden during early childhood. Further research is necessary to test this new hypothesis.
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