Kinge F O, Aasved H
Acta Ophthalmol (Copenh). 1977 Dec;55(6):901-12. doi: 10.1111/j.1755-3768.1977.tb05670.x.
The study is based on a cohort of 1570 persons consisting of all live births in 1940 of mothers then residing in Bergen. A sample was taken of the cohort after stratification according to type of school attended at the age of 14 years. The sample was supplemented with persons who had either attended Special Schools for the educable mentally retarded or received care from National Services for the mentally retarded. The final sample consisted of 262 persons. Persons in the sample were examined neurologically, and the results of these examinations formed the basis for further ophthalmological examinations. Frequency of visual impairment in the cohort at the age of 30 years, according to relatively strict criterion, is estimated at 4.6% +/- 2.0 %. Frequency was found to increase with a lower level of education (type of school) and decreasing IQ-points. Pathology of the eye was found most frequently among members of the services for the mentally retarded and was associated with encephalopathy.
该研究基于1940年当时居住在卑尔根的母亲所生的1570名活产婴儿组成的队列。根据14岁时就读的学校类型对该队列进行分层后抽取了一个样本。该样本补充了就读于可教育智力迟钝特殊学校或接受国家智障服务机构护理的人员。最终样本由262人组成。对样本中的人员进行了神经学检查,这些检查结果构成了进一步眼科检查的基础。根据相对严格的标准,该队列中30岁时视力损害的发生率估计为4.6%±2.0%。发现发生率随着教育水平较低(学校类型)和智商分数降低而增加。眼部病变在智障服务机构的成员中最为常见,并且与脑病有关。