Prevalence and Determinants of Ocular Disorders among in-School Children with Physical and Mental Disabilities in Osun State, South West Nigeria.

Purpose: This study set out to determine the prevalence and the factors contributing to ocular disorders among children with physical and mental disabilities, who represent a vulnerable group in Osun State.

Methodology: This was a cross-sectional study among children with physical and mental disabilities aged 5-17 years using a multistage sampling technique. Demographics, presence of ocular symptoms and determinants of ocular disorders were noted. Distant visual acuities were measured; refraction and ocular examination were performed. Appropriate drug treatment, prescribed spectacle or low vision aids were dispensed as necessary, at subsidized rates.

Results: Of 189 children enrolled, 103(54.5%) were males and 86(45.5%) were females, with male to female ratio of 1.2:1. Mean age was 14.7 ± 0.45 years and 28/189 (14.8%) had ocular disorders in either eye. Some of the participants had multiple pathologies. The commonest identified visual disorder was refractive error (11.1%). There was a statistically significant ocular disorder determinant among most mothers of respondents (82.1%) who had ocular disorders and did not receive antenatal care in the hospital, p<0.05. Only 28.6% of children who had ocular disorders were fully immunized.

Conclusion: The majority of mothers of children with ocular disorders did not receive antenatal care in the hospital. Health education on the importance of early antenatal care in the hospital is advocated to reduce the occurrence of ocular disorders. Early assessment and correction of ocular problems will prevent unnecessary visual impairment in these vulnerable children.