Related Experiment Video
Updated: Jul 1, 2025

Subjective Refraction Test Using a Smartphone for Vision Screening
Published on: October 18, 2024
Prevalence and Pattern of Eye Disorders Among Primary Schoolchildren in Abakaliki, Nigeria: A Cross-Sectional Study
Dilichukwu I Aniemeka1, Edak Ezeanosike1, Chinenyenwa Okanya1
1Department of Ophthalmology, Alex Ekwueme Federal University Teaching Hospital, Abakaliki, NGA.
Insights
Eye disorders like refractive errors and allergic conjunctivitis are common in Abakaliki schoolchildren. Early detection through school eye health programs is crucial for preventing visual impairment.
Area of Science:
- Ophthalmology
- Public Health
- Pediatrics
Background:
- Childhood vision is critical for cognitive, emotional, and intellectual development.
- Visual impairment can hinder a child's access to experiences and information, impacting overall development.
- Ocular morbidity in schoolchildren necessitates targeted interventions for early detection and management.
Purpose of the Study:
- To determine the prevalence and patterns of ocular morbidity among primary schoolchildren in Abakaliki.
- To provide data for planning effective school eye health programs in the region.
- To identify common eye disorders affecting children's learning and development.
Main Methods:
- A school-based, cross-sectional study was conducted in Abakaliki metropolis from January to April 2018.
- Stratified random sampling was used to recruit 553 schoolchildren aged 6-16 years.
- Data analysis involved descriptive statistics and univariate analysis with a significance level of p<0.05.
Main Results:
- The prevalence of eye disorders was 23.5%, with refractive error (12.7%) and allergic eye disease (7.1%) being most common.
- Other identified conditions included glaucoma suspect (2.7%), amblyopia (0.5%), and infective conjunctivitis (0.2%).
- The prevalence of visual impairment was 3.1%, with a significant association found between ocular morbidity and attending private schools (p=0.003).
Conclusions:
- Eye disorders, particularly uncorrected refractive errors and allergic conjunctivitis, are prevalent in Abakaliki schoolchildren.
- Regular eye screening within school health programs is essential for early detection and prompt treatment.
- Timely intervention can prevent potential visual impairment and support children's educational development.
Abstract:
Background A child's learning ability depends on vision, and visual impairment negatively affects neurological, intellectual, and emotional development by limiting children's exposure to a range of experiences and information. This study aims to determine the prevalence and pattern of ocular morbidity among primary schoolchildren in Abakaliki and provide evidence that can be used in planning a school eye health program for the state. Methodology A school-based, cross-sectional study was conducted within the Abakaliki metropolis between January and April 2018 to determine the ocular health status of schoolchildren recruited using stratified random sampling. Data were analyzed using SPSS version 22 (IBM Corp., Armonk, NY, USA) and presented using descriptive statistics. Univariate analysis was performed to determine the association between dependent and independent variables, with the level of significance determined by a p-value <0.05 (95% confidence interval (CI)). Results A total of 553 schoolchildren aged 6-16 years were examined. The prevalence of eye disorders was 23.5%. Common disorders included refractive error (12.7%) and allergic eye disease (7.1%). Other findings included glaucoma suspect (15, 2.7%), infective conjunctivitis (1, 0.2%), amblyopia (3, 0.5%), cataract (1, 0.2%), and squint (1, 0.2%). The prevalence of visual impairment was 3.1%. Univariate analysis showed a significant association between ocular morbidity and attending private schools (95% CI = 6.5-11.1, p = 0.003). Conclusions Eye disorders such as uncorrected refractive error and allergic conjunctivitis were common among schoolchildren. School eye health programs can ensure that eye screening is done periodically, allowing for early detection, referral, and prompt treatment of eye diseases that can potentially cause visual impairment.
Related Concept Videos
Accessory Structures of the Eye
Photoreceptors and Visual Pathways

