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Published on: October 18, 2024
Prevalence of Refractive Errors Among School-Going Children in Urban Versus Rural Areas
Tanmay Srivastava1, Aalok Kumar2, Ekagrata Shukla2
1Ophthalmology, Maa Vindhyavasini Autonomous State Medical College, Mirzapur, IND.
Insights
Refractive errors affect 17.43% of school children, with higher rates in urban areas. Early detection and awareness of electronic device use are crucial for preventing vision impairment in children.
Area of Science:
- Ophthalmology
- Public Health
Background:
- Refractive error is a leading cause of global visual impairment.
- Prevalence increased post-COVID-19 pandemic due to lifestyle changes.
- Childhood vision impairment can hinder development and often goes unreported.
Purpose of the Study:
- To determine the prevalence of refractive errors in urban and rural school children.
- To identify differences in prevalence between urban and rural populations.
Main Methods:
- Cross-sectional study of 2024 school children.
- Visual acuity testing using Snellen's chart.
- Refraction and retinoscopy performed for diagnosis.
Main Results:
- Overall refractive error prevalence was 17.43%.
- Urban children (22.14%) had higher prevalence than rural children (12.71%).
- Simple myopia was the most common error; 62.1% of affected children had no prior complaints.
Conclusions:
- Refractive error prevalence is significant, particularly in urban settings.
- Regular school screenings are recommended.
- Public awareness about electronic device usage is essential.
Background:
The most common cause of visual impairment globally is refractive error. The prevalence of refractive error has been on the rise since the coronavirus disease 2019 (COVID-19) pandemic, possibly due to increased indoor activities and excessive use of electronic devices. Impaired vision during childhood can affect the overall development of a child adversely, and it often remains unreported due to the inability of children to complain about impaired vision.
Aim:
The main aim of this study was to assess the prevalence of refractive errors among school-going children in urban and rural areas.
Methods:
This was a cross-sectional study that included 2024 children going to schools situated in urban and rural areas. All study subjects were tested for visual acuity for distance using Snellen's chart with and without glasses after taking a brief history regarding visual complaints. All children who had visual acuity less than 6/6 on Snellen's chart underwent refraction check-ups. Retinoscopy was performed in all study subjects. Analysis of the collected data was done using SPSS for Windows, Version 16.0 (Released 2007; SPSS Inc., Chicago, United States). The analysis of numerical data was done by an unpaired t-test, and the analysis of categorical data was done by a chi-square test. A P-value of less than 0.05 was considered statistically significant.
Results:
The mean age of the children was 10.92 ± 2.73 years, with 10.93 ± 2.73 years in urban and 10.91 ± 2.73 years in rural groups. Females (n=1031; 50.93%) were more in number than males (n=993; 49.06%). The overall prevalence of refractive error was 17.43%. The prevalence was higher in urban areas (22.14%) than in rural areas (12.71%). The age group below 10 years comprised 886 (43.77%) study subjects, and 218 (62.1%) children with refractive error had no ocular complaints. The most common refractive error found in this study was simple myopia in both groups, and the least common was astigmatism. The prevalence of uncorrected refractive error was higher in urban school-going children as compared to rural children.
Conclusion:
The prevalence of refractive error was 17.43% in our study. The prevalence was high in urban areas (22.67%) as compared to rural areas (13.12%). Regular screening of school-going children for refractive errors should be done. Also, awareness regarding the use of electronic gadgets must be raised, especially among urban children.
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