Turkiye Klinikleri Journal of Pediatrics

.: ORIGINAL RESEARCH
Prevalence and Severity of Color Vision Deficiency Among Turkish Children
Türk Çocuklarında Renkli Görme Bozukluklarının Sıklık ve Ağırlığının Değerlendirilmesi
Funda DİKKAYAa, Ayşe ÖZPINARa
aİstanbul Medipol University Faculty of Medicine, Department of Ophthalmology, İstanbul, TURKEY
Turkiye Klinikleri J Pediatr. 2020;29(2):75-81
doi: 10.5336/pediatr.2019-72628
Article Language: EN
Full Text
ABSTRACT
 Objective: To determine the prevalence of color vision deficiency, ratio of deutan/protan and the distribution of the severity of color vision deficiency among Turkish children and to evaluate the usability the Color Assessment and Diagnosis (CAD) test in children. Material and Methods: A total of 1374 children (627 girls and 747 boys) of age 6-16 years were included in this study. The first 15 plates of the Ishihara test were used to evaluate to screen for color deficiency. Those who made three or more errors had their color vision examined using the CAD test to determine the type and severity of color vision deficiency. The prevalence of color vision deficiency in boys and girls, ratio of deutan and protan deficieny and the distribution of the severity of loss were calculated. The correlations of the CAD test result and number of mistakes on the Ishihara test with age were also evaluated. Results: Thirty seven boys (4.95%) and 3 girls (0.47%) made 3 or more errors and were categorized as having color vision deficiency. In total, 32 subjects completed the CAD test, 22 subjects (68.7%) were classified as deutan and 10 (31.2%) as protan with the ratio of 2.2:1. In terms of the CAD based color vision grading system for red-green deficiency 3 subjects (9.3%) were classed as color vision (CV) category 3, 5 subjects (15.6%) as CV category 4 and 24 subjects (75%) as CV category 5. There was no significant correlation between the CAD test result and number of mistakes on the Ishihara test with age (r=-0.075, p=0.684 and r=-0.191, p=0.295 respectively). Conclusion: The results reveal severe loss of red-green color vision in 75% of the children with color vision deficiency. The study also demonstrates that the CAD test can be used in children as young as six years.

Keywords: Color vision; color vision defects; child; color perception tests; Turkey
ÖZET
 Amaç: Türk çocuklarında renkli görme bozukluğunun prevalansı, dötan/protan oranı ve ağırlığına göre renkli görme bozukluğunun dağılımının saptanması ve Renk Değerlendirme ve Tanı testinin çocuklarda kullanılabilirliğini değerlendirmektir. Gereç ve Yöntemler: Yaşları 6 ile 16 arasında değişen 627'si kız 747'si erkek toplam 1374 çocuk çalışmaya dahil edildi. Renkli görme bozukluğunun taranmasında İshihara testinin ilk 15 plakası kullanıldı. Üç ve üzerinde hata yapanlar renkli görme bozukluğunun tipi ve ağırlığının tespit edilebilmesi için Renk Değerlendirme ve Tanı testi ile değerlendirildi. Kızlarda ve erkeklerdeki renkli görme bozukluğunun prevalansı, dötan/protan oranı ve ağırlığına göre renkli görme bozukluğunun dağılımı hesaplandı. Renk Değerlendirme ve Tanı testinin sonuçları ile İshihara testindeki hata sayısının yaş ile olan korelasyonu da değerlendirildi. Bulgular: İshihara testinde 3 ve üzerinde hata yapan 37 erkek (%4,95) ve 3 kız (%0,47) renkli görme bozukluğu olanlar grubunda değerlendirildi. Olgulardan 32 tanesi Renk Değerlendirme ve Tanı testini tamamlayabildi. Bu olgulardan 22 tanesi (%68,7) dötan, 10 tanesi (%31,2) protandı ve dötan/protan oranı 2,2:1 idi. Renk Değerlendirme ve Tanı testinin kırmızı- yeşil renkli görme bozukluğu ağırlık sınıflandırmasına göre olgulardan 3'ü (%9,3) renkli görme kategori 3, 5'i (%15,6) kategori 4 ve 24'ü (%75) kategori 5'e dahildi. Renk Değerlendirme ve Tanı testinin sonucu ve İshihara testindeki hata sayısı ile yaş arasında korelasyon tespit edilmedi (r=-0,075, p=0,684 ve r=-0,191, p=0,295 sırasıyla). Sonuç: Sonuçlar renkli görme bozukluğu olan çocukların %75'inin ağır kırmızı-yeşil renkli görme bozukluğuna sahip olduğunu göstermektedir. Çalışma aynı zamanda Renk Değerlendirme ve Tanı testi'nin çocuklarda 6 yaşından itibaren kullanılabilir olduğunu göstermektedir.

Anahtar Kelimeler: Renkli görme; renkli görme bozuklukları; çocuk; renk algılama testleri; Türkiye
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