New approaches in education and health sciences management

New approaches in education and health sciences management

Prevalence of Refractive Errors as a Common Ocular Disorder in the Rural Population Aged 6–30 Years in Mazandaran Province

Document Type : Original Article

Authors
1 PhD Graduate, Department of Optometry, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
2 Professor, Department of Optometry, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
3 Assistant Professor, Department of Optometry, Faculty of Allied Medical Sciences, Mazandaran University of Medical Sciences, Sari, Iran
4 Assistant Professor of Epidemiology, Department of Basic Sciences, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
Abstract
Abstract
Background and Objective: Refractive errors are among the most common visual problems in human populations and, if left undiagnosed or untreated, can adversely affect academic performance, occupational functioning, and quality of life. This study aimed to determine the prevalence and extent of refractive errors in the rural population aged 6–30 years in Mazandaran Province, Iran.
Methods: In this descriptive-analytical study, the target population consisted of residents of rural areas in Mazandaran Province. Comprehensive eye examinations and optometric assessments were conducted for each participant, with a primary focus on measuring refractive errors. Refractive errors were measured using a Topcon autorefractometer (model R7000 RM). Data analysis was performed using one-sample t-tests, analysis of variance (ANOVA), and Scheffé post hoc tests with SPSS software.
Results: The mean refractive error increased with age, with the lowest mean observed in the 5–10 years age group (0.01 ± 0.0) and the highest in the 21–25 years group (0.41 ± 0.08). The 26–30 years group showed a slightly lower mean (0.32 ± 0.01) but remained higher than the younger age groups. ANOVA indicated a significant difference in mean refractive errors among the different age groups (F = 15.77, P < 0.0001). Scheffé post hoc analysis revealed that the 5–10 years group differed significantly from all other groups, and the 11–15 years group showed significant differences with the 21–25 and 26–30 years groups, whereas no significant differences were observed among the other age groups.
Conclusion: Overall, this study provides a clear picture of the status of refractive errors in the target population and can serve as a basis for health-oriented planning aimed at improving visual health and reducing the burden of ocular disorders in these rural areas.
Keywords

Ethics Approval ID: IR.IUMS.REC.1397.1228

1.         Xia X, Sun H, Yang Z, Yuan W, Ma D. Decoupling Analysis of Rural Population Change and Rural Electricity Consumption Change in China. Int J Environ Res Public Health. 2022;19(11):6676. doi: 10.3390/ijerph19116676
2.         Zhang Z, Mu J, Wei J, Geng H, Liu C, Yi W,et al. Correlation between refractive errors and ocular biometric parameters in children and adolescents: a systematic review and meta-analysis. BMC Ophthalmol. 2023;23(1):472. doi: 10.1186/s12886-023-03222-7
3.         He M, Chen H, Wang W. Refractive Errors, Ocular Biometry and Diabetic Retinopathy: A Comprehensive Review. Curr Eye Res. 2021;46(2):151-158. doi: 10.1080/02713683.2020.1789175
4.         Ang M, Gatinel D, Reinstein DZ, Mertens E, Alió Del Barrio JL, Alió JL. Refractive surgery beyond 2020. Eye (Lond). 2021;35(2):362-382. doi: 10.1038/s41433-020-1096-5
5.         Láng-Ritter J, Keskinen M, Tenkanen H. Global gridded population datasets systematically underrepresent rural population. Nat Commun. 2025;16(1):2170. doi: 10.1038/s41467-025-56906-7
6.         Sherief ST, Muhe LM, Mekasha A, Demtse A, Ali A. Prevalence and causes of ocular disorders and visual impairment among preterm children in Ethiopia. BMJ Paediatr Open. 2024;8(1):e002317. doi: 10.1136/bmjpo-2023-002317
7.         Duke RE, Nwachukuw J, Torty C, Okorie U, Kim MJ, Burton K, Gilbert C, Bowman R. Visual impairment and perceptual visual disorders in children with cerebral palsy in Nigeria. Br J Ophthalmol. 2022;106(3):427-434. doi: 10.1136/bjophthalmol-2020-317768
8. Vilares-Morgado R, Nunes HMM, Dos Reis RS, Barbosa-Breda J. Management of ocular arterial ischemic diseases: a review. Graefes Arch Clin Exp Ophthalmol. 2023;261(1):1-22. 10.1007/s00417-022-05747-x
9. Khil NHS, Sharma S, Sharma PK, Alam MA. Neoteric Role of Quercetin in Visual Disorders. Curr Drug Res Rev. 2024;16(2):164-174. 10.2174/2589977515666230822114324  
10. Shuey NH. Ocular myasthenia gravis: a review and practical guide for clinicians. Clin Exp Optom. 2022;105(2):205-213. 10.1080/08164622.2022.2029683  
Volume 2, Issue 4
January 2026
Winter 2026
Pages 21-31

  • Receive Date 17 June 2025
  • Revise Date 13 August 2025
  • Accept Date 07 November 2025
  • First Publish Date 15 November 2025
  • Publish Date 22 December 2025