Impact of congenital color vision defect on color-related tasks among secondary school students in Ibadan, Southwest Nigeria

Ugalahi, Mary Ogbenyi; Fasina, Oluyemi; Ogun, Olufunmilola

doi:10.4103/0189-9171.179914

Cited by 8 publications

(10 citation statements)

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“…A prevalence of 2.8% for color vision disorder was gotten for this study, (p-value 0.000), following assessment with the Ishihara plates. This was similar to that gotten by Tabansi et al [10] who had a prevalence of 2.6%, Nwosu et al [11] who also had a prevalence of 2.4% and Ugalahi et al 2.3% in Ibadan [12]. The slight differences noted may have been as a result of the differences in sample sizes.…”

Section: Resultssupporting

confidence: 89%

Pattern and Prevalence of Color Vision Disorders amongst Secondary School Students in Rivers State, Nigeria

Aprioku

Awoyesuku

2019

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Aims: To determine the prevalence and pattern of color vision disorders (CVD) amongst secondary school students in Rivers State. Study Design: A community based descriptive cross sectional study. Place and Duration of Study: Department of Ophthalmology, University of Port Harcourt Teaching Hospital from the 20th of January to the 30th of April 2014. Methodology: A community based descriptive cross sectional study where study subjects were selected using multi-stage random sampling technique with inclusion criteria of consenting students with visual acuity >6/24. Ethical clearance for test was obtained from institution. Socio-demographic data obtained using an interviewer administered questionnaire. A comprehensive ocular examination was done and color vision assessed using the Ishihara 24 plate 2009 edition and the Farnsworth Munsell D 15 test for those who failed the Ishihara test. The prevalence of color vision disorder was determined by those that failed the Ishihara test. Data obtained was analyzed using SPSS version 21. Mean and standard deviations were determined for age. The age groups gender, other demographic distribution of the subjects amongst other was presented using frequency tables and charts. Statistical significance was put at p ≤ 0.05. Results: 1000 students were studied which consisted of four hundred and ninety five males (n=495; 49.4%) and five hundred and six females (n=506; 50.6%), with a male female ratio of 1:1.02. Mean age of subjects was 14.3±1.8 years with an age range of 9-20 years. The prevalence of color vision disorders was 2.8% (p-value 0.000) and was higher in males (2.1%) than females (0.7%) (P-value 0.000). Deutan defects were the most predominant (1.8%) compared to protan defects (0.4%) and tritan defects (0.2%). Conclusion: The study showed a prevalence of color vision disorders of 2.8% with male preponderance among secondary school students. Deutan color vision defects were most prevalent.

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Section: Resultssupporting

confidence: 89%

Pattern and Prevalence of Color Vision Disorders amongst Secondary School Students in Rivers State, Nigeria

Aprioku

Awoyesuku

2019

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“…The prevalence of CVD in our study was similar to that noted in secondary students of Nigeria. [5] In Pakistan, the rate of CVD in medical and dental students was 2.75%. [6] In Nepal with small sample size of medical students, Pramanik et al .…”

Section: Discussionmentioning

confidence: 99%

“…Prevalence of CVD is reported to range from 2.3% in Nigeria to 2.75% in Pakistan. [56] Persons with congenital CVD adapt, compensate, and cope in their daily living without significant negative impact of CVD. However, persons involved in skilled work like driving and medical and dental professions could suffer and be stressed; therefore, persons making such career choices should be screened for CVD and counseled about options for career accordingly.…”

Section: Introductionmentioning

confidence: 99%

Prevalence and determinants of color vision defects among preparatory university students at Makkah, Saudi Arabia

Khairoalsindi

Almasoudi

Bamahfouz

et al. 2019

Middle East Afr J Ophthalmol

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PURPOSE:To estimate the magnitude and determinants of color vision defects (CVD) among preparatory health science students.METHODS:A cross-sectional survey was conducted in 2017. Participants were assessed using 24-plate Ishihara's Test of Color Vision chart. If ≤9 plates were read correctly, the color vision was regarded as deficient. The CVD prevalence and its 95% confidence interval (CI) were calculated. CVD was associated with gender, family history of CVD, and other vision problems.RESULTS:We evaluated 1126 students (552, 49% males; mean age: 18.7 ± 0.7 years). The prevalence of CVD was 1.77% (95% CI: 1.0, 2.6). Among male students, it was 3.5% (95% CI: 1.9, 5.0). Only one female student had CVD. The Duran CVD was found in 18 (1.6%) students. However, only two students had Tritan CVD. Three among twenty CVD students knew that they suffer from CVD. CVD was positively associated to a family history of CVD (odds ratio [OR] = 3.8; 95% CI: 1.4, 10.1;P = 0.02) and male gender (OR = 20.4 [95% CI: 2.7, 153]). CVD was not significantly associated to other vision problems (OR = 0.8 [95% CI: 0.3, 2.0]).CONCLUSION:Eighteen in thousand health sciences students suffered from CVD. Ten percent of them had Tritan CVD. Duran CVD seems to be a male sex-related and/or a familial condition. Most of the CVD students seem to have adopted to this defect and were not aware of suffering from it. Screening for CVD is therefore debatable.

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“…There is the need to incorporate color vision screening into the school curriculum as this may result in timely intervention in career choices in certain individuals [24,25].…”

Section: Resultsmentioning

confidence: 99%

Pattern of Inheritance and Career Choices of Secondary School Students Screened for Color Vision Disorders

Aprioku

Awoyesuku

2019

WJOVR

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Color vision disorders (CVD) also known as color blindness or color vision defects are one of the commonest genetic and inherited disorders observed in the human population [1,2,3,4]. Color vision results from stimulation of the cones in the retina in different combinations. [5] Color vision disorders can either be congenital or acquired. [6] With the inheritance patterns, being sex or X linked recessive and is said to be commoner in males than females.In a study by Al Aqtum et al. on-University students in Jordan, the allelic frequencies of the color vision gene was found to 0.087 in males and 0.003 in females. [7] The congenital type is mainly of the red green pattern, symmetrical and bilateral and ranges in severity from mild to severe with a prevalence of 8% in males and 0.5% in females. On the other hand, the acquired type usually has no inheritance pattern, most commonly of the yellow blue variety, unilateral and asymmetrical in the two eyes. [8][9] Color vision is important in many activities of daily living. There are four major tasks under which the importance of color falls and they include:[10].

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Impact of congenital color vision defect on color-related tasks among secondary school students in Ibadan, Southwest Nigeria

Cited by 8 publications

References 1 publication

Pattern and Prevalence of Color Vision Disorders amongst Secondary School Students in Rivers State, Nigeria

Pattern and Prevalence of Color Vision Disorders amongst Secondary School Students in Rivers State, Nigeria

Prevalence and determinants of color vision defects among preparatory university students at Makkah, Saudi Arabia

Pattern of Inheritance and Career Choices of Secondary School Students Screened for Color Vision Disorders

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