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Ocular Disorders among Preschool Children in Southwest Nigeria
Olubusayo O Adejumo1, Bolutife A Olusanya2, Benedictus G Ajayi1
1Eleta Eye Institute, Ibadan, Oyo State, Nigeria.
Insights
Ocular disorders affect 6.3% of preschool children, with refractive errors being the most common. Early vision screening is crucial for detecting and treating these conditions to support learning.
Area of Science:
- Ophthalmology
- Pediatric Medicine
- Public Health
Background:
- Early detection of visual impairments in children is critical for development.
- Preschool years are a key period for identifying and addressing ocular conditions that could impact learning.
Purpose of the Study:
- To determine the prevalence and causes of ocular disorders in preschool-aged children.
- To highlight the importance of vision screening in early childhood.
Main Methods:
- A multi-stage random sampling method was employed, screening 560 children aged 3-5 years.
- Comprehensive ophthalmic evaluations, including cycloplegic autorefraction, were performed.
- Data on demographics and relevant factors were collected.
Main Results:
- The prevalence of ocular disorders was 6.3%, affecting 35 children.
- Refractive errors were the most common disorder (3.9%), followed by allergic conjunctivitis (1.3%).
- Other identified disorders included strabismus, congenital cataract, and ptosis, with no significant difference by age or gender.
Conclusions:
- Vision screening effectively identifies ocular disorders in preschool children.
- Uncorrected refractive error, a leading cause, is treatable and early intervention can prevent learning interference.
- Regular preschool vision screening is recommended to mitigate the impact of visual impairments.
Purpose:
The aim of the study was to determine the prevalence and causes of ocular disorders among preschool children.
Methods:
A multi-stage random sampling technique was used to select 560 children from a total of 9944 children aged 3-5 years attending nursery schools in the study area. Demographic and other relevant data were collected from the children. They underwent full ophthalmic evaluation including anterior and posterior segment examination as well as cycloplegic autorefraction.
Results:
Out of the 560 children screened, 170 (30.3%) were 3 years old, 183 (32.7%) were 4 years old, while the remaining 207 (37.0%) were 5 years old. Male-to-female ratio was 1:1.1. Visual acuity was testable using Lea symbol chart in 90% of the children. Ocular disorders were found in 61 eyes of 35 children giving a prevalence of 6.3%. The most common ocular disorder among participants was refractive error (3.9%), followed by allergic conjunctivitis (1.3%). Other identified ocular disorders were strabismus (0.9%), congenital cataract (0.4%), congenital ptosis (0.4%), optic atrophy (0.4%), ectopia lentis (0.2%), and phthisis bulbi (0.2%). There was no statistically significant difference in the distribution of ocular disorders by age or gender.
Conclusion:
Screening is useful in early detection and treatment of ocular disorders in preschool children. Uncorrected refractive error which was identified as the major ocular disorder in these children is treatable. Periodic preschool vision screening would reduce the burden of uncorrected refractive error and other ocular disorders which can interfere with the learning skills of young children entering school.
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