Prevalence of congenital colour vision deficiency among secondary school students in Ibadan, South-West Nigeria
| Autor: | Mary Ogbenyi Ugalahi, Oluyemi Fasina, Olufunmilola A Ogun, Benedictus G K Ajayi |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Nigerian Postgraduate Medical Journal, Vol 23, Iss 2, Pp 93-96 (2016) |
| Druh dokumentu: | article |
| ISSN: | 1117-1936 2468-6875 |
| DOI: | 10.4103/1117-1936.186301 |
| Popis: | Aim: The aim was to determine the prevalence and pattern of congenital colour vision deficiency among secondary school students in Ibadan, Nigeria. Subjects and Methods: A descriptive cross-sectional study was conducted among students from three public secondary schools through a multi-staged sampling method. Ocular examination including visual acuity assessment and colour vision test with the Ishihara plate was performed for all students. Further assessment with the Farnsworth-Munsell D-15 panel was performed for those who failed the Ishihara test. Results: One thousand six hundred and thirty-five students participated in the study. There were 769 (47.0%) males with mean age of 13.9 ± 1.9 years. The overall prevalence of congenital colour vision deficiency was 2.3% with prevalence of 3.8% and 0.9% in males and females, respectively, which was statistically significant (P = 0.00112), and equal proportion of deutans 11 (32.0%) and protans 12 (35.0%) ratio of 1:1.1. Conclusion: The prevalence of congenital colour vision deficiency among public secondary school students in Ibadan is comparable to findings in other parts of the country. |
| Databáze: | Directory of Open Access Journals |
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