Prevalence and population genetic data of colour vision deficiency among students from selected tertiary institutions in Lagos State, Nigeria

Fakorede, Samson Taiwo; Akpan, Lydia Gift; Adekoya, Khalid O.; Oboh, B. O.

doi:10.1186/s43042-022-00287-9

Cited by 10 publications

(4 citation statements)

References 28 publications

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“…A significant correlation between female sex and deutan color blindness was observed. In contrast to our results, Fakorede et al reported that the percentage of males suffering from deutan colour blindness (2.33%) is higher than that of females suffering from this type of blindness (0.79%) [ 25 ]. Another study noted a greater prevalence of deutan and protan defects in males than in females [ 26 ].…”

Section: Discussioncontrasting

confidence: 99%

Association between cognition and color discrimination among Lebanese patients with schizophrenia

Dahdouh¹,

Solh

Lahoud

et al. 2022

BMC Psychiatry

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Background Patients with schizophrenia (SCZ) exhibit poorer color discrimination than normal individuals. Although retinal abnormalities, as well as cortical and subcortical alterations, found in patients with SCZ have been suggested to cause this poor color discrimination, the impact of cognitive impairment remains to be determined. Dopamine (DA) and glutamate (Glu), known to be disrupted in SCZ, are also suggested to play a role in color discrimination. Our objective was to investigate the contribution of cognitive impairment to color discrimination deficits in SCZ and to examine if these deficits are correlated to SCZ symptoms. Methods This study includes 127 patients with SCZ between July and September 2021. The participants completed several questionnaires, specifically the Positive and Negative Syndrome Scale (PANSS), the Montreal Cognitive Assessment (MoCA) test, and the Farnsworth D-15 test, to assess the extent of SCZ symptoms, cognition, and color discrimination respectively. Results Higher cognition (Beta = − 0.279) was significantly associated with a lower total error score (TES). Moreover, a higher positive PANSS score (Beta = 0.217) was significantly associated with a higher TES. A multinomial regression analysis taking the type of color blindness as the dependent variable showed that female sex (ORa = 5.46) was significantly associated with a certain type of color blindness. Conclusion Color discrimination deficits in patients with SCZ may be due to the effect of cognitive impairment and/or SCZ itself.

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Section: Discussioncontrasting

confidence: 99%

Association between cognition and color discrimination among Lebanese patients with schizophrenia

Dahdouh¹,

Solh

Lahoud

et al. 2022

BMC Psychiatry

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“…Color vision deficit (CVD), a collection of diseases that impact colour perception, affects around one in 12 males and one in every 200 women worldwide. The most prevalent cause of CVD is X-linked chromosomal inheritance [22]. It can also be acquired through chronic illnesses that damage the retina, optic nerve, and brain, such as diabetes mellitus, sickle cell anaemia, and retinitis pigmentosa, or through the use of certain medications such as sildenafil, digoxin, ethambutol, furosemide, metronidazole, and some antimalarials, but the most common cause of colour blindness is a hereditary defect in the development of one or more [15].…”

Section: Resultsmentioning

confidence: 99%

Prevalence of Color Blindness among Secondary School Students in Taif, Saudi Arabia

Althomali¹,

Algarni²,

Alosaimi³

et al. 2022

Arch. Pharm. Pract

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To investigate the occurrence, causes, and risk factors of color vision deficiency among Taif, Saudi Arabia secondary school students. A cross-sectional study was carried out on secondary schools, during the period from 1 to 31 June 2022. Secondary school students, of Taif city, Saudi Arabia. Data were collected using a personal interview with the students using a predesigned questionnaire covering the needed items. Students diagnosed with color blindness were 2.0%; of them, persons diagnosed with protan color blindness were 58.3%, while 41.6% had deutan color blindness, and students diagnosed with CVD were 0.4%. On the other hand, 4.2% could not see shades or tones of the same color and the same percent had difficulty distinguishing between colors. Regarding the cause of CVD, our study revealed that 4.2% of the studied population were due to primary causes (hereditary), and the same percent were due to secondary diseases. As regards family history, 1.0% had a mother and/or father affected by the disease, 0.8% had a sibling with the disease, and 96.3% had no family history. It was also found that there is a significant relationship between CVD and family history (p-value =0.008). There was a higher incidence in males than females, there is a significant relationship between gender and CVD (p-value=0.001). Students diagnosed with color blindness were 2.0%; of them, persons diagnosed with protan color blindness were 58.3%, while 41.6% had deutan color blindness, and students diagnosed with CVD were 0.4%. There was a higher incidence in males than females.

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“…The inability to distinguish between different colors under normal lighting conditions is known as colour vision deficiency (CVD) (Kundu & Chakma, 2020). According to earlier studies, approximately 8%-9% of men and 0.5% of women are reported to be colorblind (Fakorede et al, 2022).…”

Section: Introductionmentioning

confidence: 97%

The Impact of Colour Vision Defect on Consumer’s Fruits Selection Process while Purchasing from Retail Fruit Shops in Bangladesh

Dada,

Tawhid Reaz,

Ribero

2024

IJABS

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Color Vision Defect affects about one in twelve males and two hundred women worldwide, according to research. CVD has a big impact in almost every marketing and branding circumstance, especially when product color is the key. This study began with a Red-Green CVD test of 522 Dhaka residents. Since few research have measured color blindness in Bangladesh, this study can be used as one of the Bangladesh color vision deficiency baseline results. The important factor of this study is whether this result is comparable to Bangladesh’s earlier result and whether Bangladesh has a lower/higher CVD prevalence than other nations. The most common CVD is Red-Green Colour Vision Defect. Green fruits turn yellow and red when maturing and CVD patients have trouble distinguishing neighboring colours like Red, Green, Brown, etc. After examining baskets of green and ripe yellow, red, and partly reddish fruits, this study evaluated the findings. This study found out that people with color vision defects had trouble choosing fruits from baskets. Furthermore, the study tested hypotheses to determine severity of Red-Green CVD and found out it to be less than expected probably due to coping mechanism, experience etc. in Red-Green CVD subjects.

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Prevalence and population genetic data of colour vision deficiency among students from selected tertiary institutions in Lagos State, Nigeria

Cited by 10 publications

References 28 publications

Association between cognition and color discrimination among Lebanese patients with schizophrenia

Association between cognition and color discrimination among Lebanese patients with schizophrenia

Prevalence of Color Blindness among Secondary School Students in Taif, Saudi Arabia

The Impact of Colour Vision Defect on Consumer’s Fruits Selection Process while Purchasing from Retail Fruit Shops in Bangladesh

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