Visual acuity profile of school-going children: a descriptive cross-sectional study
DOI:
https://doi.org/10.18203/2394-6040.ijcmph20261419Keywords:
Refractive errors, Vision screening, Visual acuityAbstract
Background: Visual acuity is a critical component of a child’s visual function and is essential for learning and overall development. Unrecognized reduction in visual acuity during school years can adversely affect academic performance and quality of life. School-based vision screening offers an effective opportunity for early identification of reduced visual acuity, particularly in urban settings where visual demands are high. In this context, the present study aimed to assess the visual acuity status of school-going children aged 6-16 years and to document the eye-wise distribution of visual acuity categories in urban schools of Mysuru.
Methods: A cross-sectional study was conducted over one month among 422 children aged 6-16 years selected using probability proportionate to size sampling. Visual acuity was assessed using a standardized Snellen chart. Sociodemographic details and family history of spectacle use were recorded. Data were analyzed using descriptive statistics.
Results: Normal visual acuity (6/6) was observed in 81.5% of right eyes and 82.7% of left eyes. Reduced visual acuity of 6/12 or worse was observed in a smaller proportion, with higher frequencies noted among older age groups. Visual acuity of 6/18 or worse was more common in children aged 11-16 years. Gender-wise distributions of visual acuity were comparable between boys and girls.
Conclusions: A substantial proportion of school-going children exhibited reduced visual acuity detectable through routine screening. The findings highlight the importance of regular school-based visual acuity assessment to facilitate early identification and timely intervention for visual impairment.
References
World Health Organization. Global initiative for the elimination of avoidable blindness: action plan 2006–2011. Geneva: WHO; 2007.
Khandekar R, Mohammed AJ, Al Raisi A. Visual function and academic performance among school children. Middle East Afr J Ophthalmol. 2009;16(1):12-5.
World Health Organization. World report on vision. Geneva: WHO; 2019.
Pascolini D, Mariotti SP. Global estimates of visual impairment: 2010. Br J Ophthalmol. 2012;96(5):614-8.
Resnikoff S, Pascolini D, Mariotti SP, Pokharel GP. Global magnitude of visual impairment caused by uncorrected refractive errors. Bull World Health Organ. 2008;86(1):63-70.
Murthy GVS, Gupta SK, Ellwein LB, Muñoz SR, Pokharel GP, Sanga L, et al. Refractive error in children in an urban population in New Delhi. Invest Ophthalmol Vis Sci. 2002;43(3):623-31.
Dandona R, Dandona L. Refractive error blindness. Bull World Health Organ. 2001;79(3):237-43.
Limburg H, Kansara HT, d’Souza S. Results of school eye screening of 5.4 million children in India- a five-year follow-up study. Acta Ophthalmol Scand. 1999;77(3):310-4.
Wedner SH, Ross DA, Balira R, Kaji L, Foster A. Prevalence of eye diseases in primary school children in a rural area of Tanzania. Br J Ophthalmol. 2000;84(11):1291-7.
Government of India. National Programme for Control of Blindness and Visual Impairment: Operational Guidelines. New Delhi: Ministry of Health and Family Welfare. 2017.
Ramachandra K, Gilyaru S, Eregowda A, Yathiraja S. Prevalence of refractive error and the eye morbidity in school children in Bangalore, India. Int J Contemp Pediatr. 2016;138-41.
Mohandas A, Malenahalli SM, Dowerah J, Kulkarni P, Kumar DS, Murthy MRN, et al. Screening for vision impairment and ocular morbidities among adolescents and young adults in urban and rural areas of southern India. Clin Epidemiol Glob Health. 2020;8(3):845-50.
Srivastava T, Kumar M, Singh V, Shukla E, Anuranjani L. Prevalence of refractive errors among school-going children: a cross-sectional study. Indian J Ophthalmol. 2024;72(3):421-7.
Al Khathami A, Baklola M, Alshehri AA, Alnasser LH, Alshehri RS, Salawi MA, et al. Prevalence of Refractive Errors Among School-Age Children and Adolescents in Saudi Arabia: A Systematic Review and Meta-Analysis. Clin Ophthalmol. 2025;19:2117-32.
Hussain E, Rahman MM, Ahmed F. Prevalence of refractive errors among school-aged children in Bangladesh. Epidemiol Health. 2025;47:e2025012.
Kawache KA, Zode MY, Basu S. Prevalence and distribution of refractive errors among school-going adolescents in central India. Int J Community Med Public Health. 2025;12(1):34-9.
Subburaman GBB, Gupta S, Vardhan A, Datta D, Sunder B, Thulasiraj RD. Prevalence, coverage and effective coverage of refractive error services: a population-based survey. Public Health Pract (Oxf). 2025;6:100412.
Wang X, Zeng L, Xian Y, Xin M, Shan Q, Li W, et al. Prevalence of myopia and refractive parameters among children and adolescents in Hi-tech District of Chengdu City. Front Pediatr. 2025;12:1502660.
Pan W, Saw SM, Wong TY, Morgan I, Yang Z, Lan W. Prevalence and temporal trends in myopia and high myopia children in China: a systematic review and meta-analysis with projections from 2020 to 2050. Lancet Reg Health West Pac. 2025;55:101484.
Benhim E, Bentayeb F, Dahbi A, Adhiri R. Myopia Prevalence and Associated Factors IN School-Aged Children in Southern Morocco: A Cross-Sectional Study. Br Ir Orthopt J. 2025;21(1):80-7.
Joseph E, Ck M, Kumar R, Sebastian M, Suttle CM, Congdon N, et al. Prevalence of refractive errors among school-going children in a multistate study in India. Br J Ophthalmol. 2023 Dec 18;108(1):143-51.