Sivak J G, Bobier C W
Invest Ophthalmol Vis Sci. 1978 Jul;17(7):705-9.
Retinoscopy through colored filters (chromoretinoscopy) was used to determine the portion of the chromatic aberration interval in focus when young children (2 to 6 years of age) fixate at far and near. The results indicate that the children may be divided into three distinct groups. In the youngest group there is haphazard focusing within the chromatic aberration interval at far and near. The middle group shows selective focusing of the red end of the chromatic interval at both far and near. Children in the oldest group focus the red end when fixating at far and the green end when fixating at near, thereby sparing accommodation. These results suggest that the eye's use of the chromatic aberration interval to spare accommodation, as found in previous studies carried out on adults, is learned by about the fourth year of a child's life.
通过彩色滤光片进行视网膜检影（彩色视网膜检影），以确定幼儿（2至6岁）在注视远物和近物时色差区间内聚焦的部分。结果表明，这些儿童可分为三个不同的组。最年幼的一组在注视远物和近物时，在色差区间内随机聚焦。中间一组在注视远物和近物时，均表现出对色差区间红色端的选择性聚焦。最年长一组的儿童在注视远物时聚焦于红色端，在注视近物时聚焦于绿色端，从而节省了调节。这些结果表明，如先前在成人身上进行的研究所发现的，眼睛利用色差区间来节省调节，是在儿童大约四岁时习得的。
