Color vision deficiency among biomedical students: a cross-sectional study

Dohvoma, VA; Mvogo, Stève Robert Ebana; Kagmeni, Giles; Emini, Nathalie Rosine; Epée, Emilienne; Mvogo, Côme Ebana

doi:10.2147/opth.s160110

Cited by 16 publications

(19 citation statements)

References 11 publications

(20 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Colour vision deficiency (CVD) or colour blindness, is the inability or decreased ability to distinguish different colours under normal lighting conditions [ 1 ]. It is one of the commonest disorders of vision [ 2 ] and the incidence of CVD varies from race to race and different in different geographical area [ 3 , 4 ]. However, most of colour blind cases remain undetected due to absence of proper screening [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Prevalence of color vision deficiency among school children in Wolkite, Southern Ethiopia

Woldeamanuel

Geta

2018

BMC Res Notes

View full text Add to dashboard Cite

ObjectiveColour vision deficiency is the commonest disorders of vision and undiagnosed colour vision defect could pose a handicap to the performance of an affected student. The prevalence of colour blindness varies in different geographical area and ethnicity. Hence, a cross sectional study was conducted among school children in Gurage Zone, Southern Ethiopia from April 15 to June 20, 2018. Socio-demographic data was collected on a face to face interview using structured questionnaire. All study participants underwent color vision evaluation using Ishihara’s pseudo isochromatic test 38 plate editions. Data analysis was done using SPSS version 23.ResultsA total of 844 (471 boys and 373 girls) school children were screened for colour vision. The overall prevalence of colour vision deficiency was 4.1%, comprised of 3.6% in boys and 0.6% in girls. Out of 35 color blind subjects, 15 (42.9%) and 20 (57.1%) were the victims of protan and deutan defects respectively. Majority of the colour blind subjects were not aware of their colour vision status. Hence, the study concluded that the prevalence of colour vision deficiency in our study is significant and colour vision screening among school should be performed.

show abstract

Section: Introductionmentioning

confidence: 99%

Prevalence of color vision deficiency among school children in Wolkite, Southern Ethiopia

Woldeamanuel

Geta

2018

BMC Res Notes

View full text Add to dashboard Cite

show abstract

“…In all classes of severity, males had a higher preponderance. In the Deutan group, about 24% (24) where of the mild and moderate severity while 7% (7) had severe Deutan patterns.…”

Section: Severity Of Color Blindness Between Gendersmentioning

confidence: 97%

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

Aprioku

Awoyesuku

2019

View full text Add to dashboard Cite

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.

show abstract

“…The prevalence of colour vision deficiency is expected to increase globally with the growing population, and varies among different races and geographical areas [2–4]. It has been reported that most people with colour vision defects remain undiagnosed [3, 4]. Colour vision deficiency is therefore under-reported due to a lack of its awareness and the absence of proper screening to detect this in the general population [4, 5].…”

Section: Introductionmentioning

confidence: 99%

Prevalence of congenital colour vision deficiency among Black school children in Durban, South Africa

Mashige

Staden

2019

BMC Res Notes

View full text Add to dashboard Cite

Objectives Congenital colour vision deficiency (CCVD) is an x-linked chromosome disorder that results from abnormalities in one or all three-cone type’s photoreceptors. Early assessment and diagnosis of CCVD is necessary to minimise the disability associated with the condition. Multistage sampling was used to determine the prevalence of CCVD among Black South African school children in Durban, South Africa. The examination included visual acuity measurements, ocular motility evaluation, retinoscopy, auto-refraction, and examination of the anterior segment, media and fundus. Colour vision testing was performed using Colour Vision Testing Made Easy colour plates (Home Vision Care, Gulf Breeze, FL). Results 1305 (704 boys and 601 girls) Black school children participated in the study. The overall prevalence of colour vision deficiency was 29 (2.2%), which was higher in boys (25, 4.2%) than girls (4, 0.6%), with prevalence of protanopia and deuteranopia found to be 10 (0.7%) and 19 (1.5%), respectively. The prevalence of protanopia and deuteranopia among males was nine (1.5%) and 16 (2.7%) respectively, which was significantly higher than the 1 (0.1%) protanopia and 3 (0.4%) deuteranopia in females (p < 0.05). Policies and guidelines for comprehensive school eye health programmes which screen children for CCVD are required in South Africa. Electronic supplementary material The online version of this article (10.1186/s13104-019-4374-1) contains supplementary material, which is available to authorized users.

show abstract

Color vision deficiency among biomedical students: a cross-sectional study

Cited by 16 publications

References 11 publications

Prevalence of color vision deficiency among school children in Wolkite, Southern Ethiopia

Prevalence of color vision deficiency among school children in Wolkite, Southern Ethiopia

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

Prevalence of congenital colour vision deficiency among Black school children in Durban, South Africa

Contact Info

Product

Resources

About