Woldeamanuel Gashaw Garedew, Geta Teshome Gensa
Department of Biomedical Sciences, School of Medicine, College of Medicine and Health Sciences, Wolkite University, P.O. Box 07, Wolkite, Ethiopia.
BMC Res Notes. 2018 Nov 28;11(1):838. doi: 10.1186/s13104-018-3943-z.
Colour 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.
A 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.
色觉缺陷是最常见的视觉障碍，未被诊断出的色觉缺陷可能会对受影响学生的表现造成障碍。色盲的患病率在不同地理区域和种族中有所不同。因此，2018年4月15日至6月20日在埃塞俄比亚南部古拉格地区的学童中进行了一项横断面研究。通过面对面访谈使用结构化问卷收集社会人口统计学数据。所有研究参与者均使用石原氏假同色图测试38版进行色觉评估。使用SPSS 23版进行数据分析。
共对844名（471名男孩和373名女孩）学童进行了色觉筛查。色觉缺陷的总体患病率为4.1%，其中男孩为3.6%，女孩为0.6%。在35名色盲受试者中，分别有15名（42.9%）和20名（57.1%）是红色盲和绿色盲缺陷的受害者。大多数色盲受试者不知道自己的色觉状况。因此，该研究得出结论，我们研究中的色觉缺陷患病率很高，应在学校中进行色觉筛查。
