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Journal of Ophthalmology
Volume 2019, Article ID 9748576, 4 pages
Research Article

Role of Gender in the Prevalence of Myopia among Polish Schoolchildren

12nd Department of Ophthalmology, Pomeranian Medical University, al. Powstańców Wlkp. 72, 70-111 Szczecin, Poland
2Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, al. Powstańców Wlkp. 72, 70-111 Szczecin, Poland

Correspondence should be addressed to Damian Czepita; lp.atipezc@roseforp

Received 19 January 2019; Revised 10 May 2019; Accepted 27 May 2019; Published 2 July 2019

Guest Editor: Malgorzata Mrugacz

Copyright © 2019 Maciej Czepita et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Purpose. The aim of the paper was to study the role of gender in the progression of myopia among Polish schoolchildren. Materials and Methods. 4875 children from elementary schools and high schools were examined (2470 boys, aged 6–16 years, mean age 11.0, SD = 2.6 and 2405 girls, aged 6–16 years, mean age 11.1, SD = 2.6). The examined students were Caucasian and resided in and around Szczecin, Poland. The examination included retinoscopy under cycloplegia. The refractive error readings were reported as spherical equivalent (SE). Myopia was defined as SE of at least −0.5 D. Data analysis was performed using the Mann–Whitney test and 2-sided Fisher’s exact test. values of less than 0.05 were considered statistically significant. Results. It was found that the SE among Polish boys is similar to the SE among Polish girls before the age of 9 years. However, in older children, lower SE values and higher prevalence of myopia were found among girls than boys, both at 9–13 years range (0.45 ± 1.05 vs 0.55 ± 1.23 D, and 8.30% vs 5.71%, , respectively) and at 13–16 years range (0.32 ± 1.14 vs 0.54 ± 1.08 D, and 10.37% vs 5.96%, ), respectively. Conclusions. Gender is associated with the prevalence of myopia among Polish schoolchildren ranging from 9 to 16 years of age.