To explore the risk factors of refractive errors in hearing-impaired children, and put forward some suggestions for the prevention and control of refractive errors in hearing-impaired children. Methods: Stratified cluster sampling was used to select 500 students aged 6 - 12 from Shanghai Deaf school and Shanghai ordinary primary school, respectively, for questionnaire survey and field visual acuity screening. The results showed that : (1) The refractive error rate of hearing impaired children aged 6 - 12 years increased gradually with the increase of age; It is far the most common refractive error in hearing-impaired children, and girls are higher than boys (P<0.05); (2) Parental inheritance is an uncontrollable genetic factor for hearing-impaired children. Among them, the refractive error rate of hearing-impaired children with a family history of inbreeding is as high as 33.3%(P<0.05, OR=1.514); (3) Poor eye habits: Excessive screen time, insufficient sleep, left-behind children are the risk factors for refractive error of hearing-impaired children (P<0.05); (4) Scientific wear glasses and check eyesight regularly. Exercising outdoors for more than 1 hour every day has obvious prevention and regulation effect on refractive error of hearing-impaired children (P<0.05). Conclusion: The refractive error rate of hearing-impaired children is higher than that of healthy hearing-impaired children. The screen time and exercise time of left-behind children with inbreeding history, poor reading and writing habits are important factors that cause the difference of refractive error between hearing-impaired children and healthy hearing-impaired children.

Mengxue Han, Yuexin Liu and Xibin Gao. Comparison of influencing factors of refractive error between hearing-impaired children and healthy children. Academic Journal of Humanities & Social Sciences (2020) Vol. 3, Issue 8: 70-81. https://doi.org/10.25236/AJHSS.2020.030807.

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