Congenital Color Blindness in Young Turkish Men

Çıtırık, Mehmet; Acaroğlu, Gölge; Zilelioğlu, Orhan

doi:10.1080/09286580590932743

Cited by 35 publications

(32 citation statements)

References 13 publications

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“…Results from all these studies situated within the anticipated range for Caucasian males; about 8.0-10.0% of the Caucasian male population is affected [14]. CVD prevalence in neighboring countries are either lower or higher than this study results as (8.72) in Jordan [15] , In Iran, three studies are done in different cities in Qazvin, Zanjan , and Tehran, the prevalence of CVD were varied from 3.49 to 8.7 and 8.8 respectively [16][17][18],7.3% in Turkey [19], and 2.9-11% in Saudi Arabia [20][21]. In some European countries, in three different studies, the prevalence of CVD among male students in Germany were (7.8), (7.95) among males in Greek and (8.7) among males in Denmark [22][23][24].…”

Section: Discussionmentioning

confidence: 73%

“…In large study in India, researchers found that 7.95% deutans and 3.22% protans [26], In Jordan, 12 of cases of deutan and 7 cases of protans [15], In Nepal , 16 cases out of 19 cases of deutan types [27] , In study done in Philippine , (78.95%)of cases of CVD of deutan types [28]. In Erbil, cases of deutans are slightly more than cases of protans [8].while a Turkish study has reported about 5.10% protans and 2.23% deutans among male [29]. Because, the CVD is inherited the condition, its allocation is likely to be changeable among ethnic groups.…”

Section: Discussionmentioning

confidence: 99%

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Prevalence of Color Vision Deficiency among Students in Hajand and Amad High Schools in Shekhan City

Abdulrahman

2017

KJAR

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Abstract:Color vision deficiency is a condition affecting human's ability to see or recognize specific colors. It is mostly genetic, X-linked recessive inheritance and thus, is more common among males than females. This cross sectional study was done to find the prevalence of color vision deficiency among high school students in Shekhan city and to find the relation of color vision deficiency with different races. The study has been conducted in two high schools that were present inside Shekhan city at the time of the study (Amad high school for males and Hajand high school for females). All students screened by using Ishihara 24 plates. 640 students (283 males, 357 females) were screened. Students' age range (15-22 years), the Mean age for males 17.50 years and for females 17.13 years. The prevalence of Color Vision Deficiency was 6.36% among males and 0.84% among females. The most common types of Color Vision Deficiency among males were deuteranomaly (10cases), protanomaly (5 cases), deuteranopia (2 cases) and protanopia (1 case). There was no significant difference between races and color vision deficiency. Similar to dyslexia, before it was well known and well understood, color vision deficiency is an invisible disability and can lead to students becoming disappointment with learning or feeling that they are moronic or less cable than others. It can provide erroneous rules for learning and indeed, even influence how well they do in their exams and consecutively their choice of career.

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Section: Discussionmentioning

confidence: 73%

Section: Discussionmentioning

confidence: 99%

Prevalence of Color Vision Deficiency among Students in Hajand and Amad High Schools in Shekhan City

Abdulrahman

2017

KJAR

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“…Based on the previously published studies, the incidence of congenital colour vision defects recorded in different populations ranged from 2% to 8% of men (Malaspina et al 1986;Osuobeni 1996;Citirik et al 2005;Delpero et al 2005). Because the data collected by the Military Medical Commission showed only the general prevalence of colour vision defects, it was not possible to calculate the proportion of protans and deutans in our sample.…”

Section: Discussionmentioning

confidence: 99%

Ocular findings among young men: a 12‐year prevalence study of military service in Poland

Nowak

Jurowski

Goś

et al. 2010

Acta Ophthalmologica

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ABSTRACT.Purpose: To determine the prevalence of ocular diseases among young men and to assess the main ocular causes reflecting discharge from military service in Poland. Methods: A retrospective review of the medical records of 105 017 men undergoing a preliminary examination for military service during the period 1993-2004. Sample size for the study was calculated with 99% confidence within an error margin of 5%. All of the study participants were White men of European origin, most of whom live or lived in Poland. Data regarding the vision status were assessed in 1938 eyes of 969 participants. Two groups were distinguished based on the age of the participants: group I aged 18-24 years, and group II aged 25-34 years. Results: Presented visual impairment [visual acuity (VA) < 20 ⁄ 40)] followed by colour vision defects were the most common ocular disorders, accounting for 13.2%. There were statistically significant differences in uncorrected VA as well as in the rates of particular refractive errors in between the age groups (p < 0.05). The prevalence of glaucoma and ocular hypertension was significantly higher in older participants. Six hundred and sixty-seven (68.8%) participants examined medically in the study period were accepted for military service. However, 302 (31.2%) failed their examination and were temporarily or permanently discharged from duty. Fifty-two of them (17.2%) were discharged because of various ocular disorders. The most common causes were high refractive errors, which accounted for 38.5% of all the ocular discharges, followed by chronic and recurrent diseases of the posterior segment of the eye, which accounted for 19.2%. Conclusion: The prevalence of ocular disorders among young men in an unselected military population was closer to the results obtained in other population-based studies comprising both men and women in the same age group. High refractive errors followed by chronic and recurrent diseases of the posterior segment of the eye are important causes of medical discharges from military service in Poland.

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“…A test score below 7 was considered color blind, and then classified as protananomalia or deuteranomalia. 1 Ishihara plates may have limitations, and the possibility exists that in some instances the failure to resolve such stimuli may indicate, not an absence of color resolution, but an inability to detect the critical features in the test. It can therefore be concluded that the Ishihara test is good for screening, but it does not discriminate complete and partial degrees of color blindness with accuracy.…”

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confidence: 99%