Courage M L, Adams R J, Reyno S, Kwa P G
Department of Psychology, Memorial Hospital of Newfoundland, St John's, Canada.
Dev Med Child Neurol. 1994 Jul;36(7):586-93. doi: 10.1111/j.1469-8749.1994.tb11895.x.
The authors used the Teller acuity cards to assess the visual acuity of 51 infants and children with Down syndrome aged between two months and 18 years. The success rate and test times were comparable to those reported for normally developing children. Even those subjects in the study who were free of ocular disorders and/or who were wearing optical correction during testing showed significantly poorer visual acuity than individuals without Down syndrome. The development of visual acuity in infants and children with Down syndrome lags behind that of age-matched peers without Down syndrome, especially after the age of six months. These findings are discussed in terms of the neurological and optical factors that might account for the deficits in visual acuity that were observed.
作者使用泰勒视力卡片评估了51名年龄在2个月至18岁之间的唐氏综合征婴幼儿及儿童的视力。成功率和测试次数与正常发育儿童的报告结果相当。即使是该研究中那些没有眼部疾病和/或在测试期间佩戴了视力矫正器具的受试者，其视力也明显低于无唐氏综合征的个体。唐氏综合征婴幼儿及儿童的视力发育落后于年龄匹配的无唐氏综合征同龄人，尤其是在6个月龄之后。本文根据可能导致所观察到的视力缺陷的神经学和光学因素对这些发现进行了讨论。
