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CC BY 4.0 · Libyan International Medical University Journal 2024; 09(02): 062-067
DOI: 10.1055/s-0044-1789236
Original Article

A Cross-Sectional Study about the Prevalence of Color Vision Deficiency among School Children in Benghazi

Sarah Husayn Salih Alarifi 
1   Department of Ophthalmology, Faculty of Medicine, University of Benghazi, Benghazi, Libya
,
Mariam Mohamed B. Gebril 
1   Department of Ophthalmology, Faculty of Medicine, University of Benghazi, Benghazi, Libya
› Institutsangaben Funding None.
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Abstract

Background Color vision deficiency (CVD) is a common disorder caused by damage to retinal photoreceptors and cones. The disorder makes a person less able to perceive color variations.

Aims The objective of the study was to assess the prevalence of CVD among the school children in Benghazi, Libya.

Methods This cross-sectional study was performed in the Department of Ophthalmology, Benghazi University, Benghazi, Libya, during the period from December 2023 to March 2024. The study included 1,022 students aged 6 to 18 years to assess the prevalence of CVD. Visual acuity assessment was performed in a place with good daylight illumination using the standard Snellen Tumbling E chart at a distance of 6 m. Color vision evaluation was performed in the schools using Ishihara color plates (24 plate–edition). The quantitative variables were presented as mean ± standard deviation, and the qualitative variables were presented as frequencies and percentages. The Student's t-test was used for comparing means, whereas the chi-square test was applied for comparing the frequencies. A p-value of < 0.05 was considered statistically significant.

Results CVD was present in 15 cases (1.5%). There were 13 males (2.6%) and 2 females (0.38%) with a statistically significant difference regarding gender. Among the 13 males with CVD, 7 students (53.8%) had deuteranomaly, 2 students (15.4%) had deuteranopia, 1 student (7.7%) had protanomaly, and 3 students (23.1%) had color blindness. The two females with CVD both had deuteranomaly.

Conclusion Early detection of CVD is vital to making informed decisions about a student's future career. With early detection, parents and teachers can adjust their educational strategies to ensure the best learning outcomes for the student.

Keywords

color vision disorder - school children - prevalence - visual activities - Ishihara


Publikationsverlauf

Eingereicht: 05. Mai 2024

Angenommen: 29. Juli 2024

Artikel online veröffentlicht:
18. September 2024

© 2024. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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