Cosstick Michael, Robaei Dana, Rose Kathryn, Rochtchina Elena, Mitchell Paul
Department of Ophthalmology, Centre for Vision Research, Westmead Hospital, Australia.
Am J Ophthalmol. 2005 Jul;140(1):154-6. doi: 10.1016/j.ajo.2005.01.002.
To describe the prevalence of numerical confusion errors in Ishihara testing in a representative sample of Australian children.
Cross-sectional, population-based study.
The Sydney Myopia Study examined a representative stratified random cluster sample of 1,741 children (aged 6 years) attending 34 schools in Sydney, Australia (response rate, 78.9%), including color vision tests in 1,735 children. Those with any color vision defects (n = 33; 1.9%; 97% boys) were excluded. Responses for each Ishihara plate were recorded.
Numerical confusion errors were made by 75.8% of children with normal color vision; there was no gender difference. Plates 3 and 7 were particularly prone to numerical confusion errors; 48.4% and 40.8%, respectively, of children misread these plates.
Numerical confusion errors in the Ishihara test were relatively common in children with normal color vision. The frequency of such errors could indicate an inherent deficiency in this commonly used test.
描述澳大利亚儿童代表性样本在石原氏测试中数字混淆错误的发生率。
基于人群的横断面研究。
悉尼近视研究调查了澳大利亚悉尼34所学校的1741名6岁儿童的代表性分层随机整群样本（应答率78.9%），其中1735名儿童进行了色觉测试。排除所有有色觉缺陷的儿童（n = 33；1.9%；97%为男孩）。记录每个石原氏板的应答情况。
75.8%色觉正常的儿童出现数字混淆错误；无性别差异。第3和第7个板特别容易出现数字混淆错误；分别有48.4%和40.8%的儿童误读了这些板。
石原氏测试中的数字混淆错误在色觉正常的儿童中相对常见。此类错误的频率可能表明这种常用测试存在固有缺陷。
