By Dr. Obinna Ononuju O.D, student of the Master in Clinical Optometry and Vision Therapy


Background: Most children in developing nations only notice a problem with their vision when they had started schooling and are hence unable to cope with studies, causing poor school performance. Information on prevalence of childhood refractive errors in Nigeria is necessary to design and implement strategies to contain the associated challenge, but this is lacking.

Method: This was a descriptive review of literatures reporting prevalence of refractive errors. A total of 11 out of 26 articles recovered through internet searches qualified for inclusion and full text review. Results were summarized with SPSS.

Result: Myopia was the commonest form of the refractive eye disorders in Nigeria of 9.73±10.31, with a range of 0.65% to 31.05% (95% CI = 2.81 – 16.66). The mean prevalence of hypermetropia in the studies reviewed is 4.92 ± 5.33%, with minimum and maximum values of 0.20% and 19.03% respectively (95% CI = 1.34 – 8.50). The average prevalence for astigmatism was 10.36 ±21.83% with range of 0.81% to 75.50% (95% CI = -4.30 – 25.03), while median prevalence of the three refractive errors were 4.5% for myopia, 3.8% for hypermetropia whereas astigmatism was 2.38%.

Conclusion: This study has pinpointed the burden of childhood refractive errors in different geopolitical zones of Nigeria and have provided evidence that the subject matter is understudied in our locality This calls for the need for more research in the area and also for the government to scale up quality eyecare for children in different parts of Nigeria

Download the full research study here: Dr. Obinna Ononuju O.D (2020). Prevalence of Refractive Errors among Children in Different Geo-political Zones of Nigeria. SAERA


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