Development of Refractive Parameters in 3- to 6-Year-Old Children and Its Application in Myopia Prediction and Intervention Guidance
| Autor: | Ya Zhang, Ming Su, Hua Liu, Yanxia Song, Jing Liu, Huihui Sun, Xueya Wu, Xiaoge Yang, Liqin Qi, Feifan Du, Lili Liu, Lu Chen, Jing Huang, Xiting Guo, Zhongnan Yang, Xueping Yang |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Male
China Biometry General Immunology and Microbiology Article Subject genetic structures Applied Mathematics Vision Tests Computer applications to medicine. Medical informatics R858-859.7 Computational Biology General Medicine Refraction Ocular General Biochemistry Genetics and Molecular Biology Cross-Sectional Studies Vision Screening Modeling and Simulation Child Preschool Myopia Prevalence Humans Female Child Research Article |
| Zdroj: | Computational and Mathematical Methods in Medicine, Vol 2021 (2021) Computational and Mathematical Methods in Medicine |
| ISSN: | 1748-6718 |
| Popis: | Objective. To investigate refractive development and prevalence of myopia in children aged 3-6 years in Hebei Province, China, and to explore the developmental law of refraction, so as to clinically guide the prediction and intervention of myopia. Methods. In May 2019, a total of 6120 people were inspected in 68 kindergartens in 11 cities in Hebei Province. Child refractive refraction was checked under noncycloplegia using a handheld binocular vision screener (SW-800, SUOER, Tianjin, China). Axial length (AL) and corneal radius of curvature (CR) were measured using an ocular biometry (IOLMaster 500, Carl Zeiss, Germany). Myopia was defined as spherical equivalent SE ≤ − 0.75 D . Results. A total of 5506 children aged 3-6 years met the criteria and were included in the statistical analysis. The prevalence of myopia was 3.49% (1.93% at age 3, 2.90% at age 4, 3.78% at age 5, and 3.88% at age 6). Overall, the mean SE was + 0.67 ± 1.05 D ( + 0.81 ± 1.00 D at age 3, + 0.79 ± 1.05 D at age 4, + 0.67 ± 1.08 D at age 5, and + 0.13 ± 1.01 D at age 6); the mean CR was 7.76 ± 0.26 mm ( 7.78 ± 0.26 mm at age3, 7.75 ± 0.25 mm at age 4, 7.77 ± 0.26 mm at age 5, and 7.76 ± 0.25 mm at age 6); the mean AL was 22.31 ± 0.73 mm ( 21.98 ± 0.63 mm at age 3, 22.12 ± 0.69 mm at age 4, 22.34 ± 0.73 mm at age 5, and 22.49 ± 0.73 mm at age 6). Conclusions. Prevalence of myopia increases with age in children aged 3-6 years in Hebei, China. With the increase of age, CR is basically stable, and AL increases gradually. AL/CR, which is closely related to SE, can be used as an indicator to predict myopia and guide clinical work. |
| Databáze: | OpenAIRE |
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