Wilkins A J, Evans B J, Brown J A, Busby A E, Wingfield A E, Jeanes R J, Bald J
MRC Applied Psychology Unit, Cambridge, UK.
Ophthalmic Physiol Opt. 1994 Oct;14(4):365-70.
We selected 68 children who reported benefit from individually chosen sheets of coloured plastic placed upon the page when reading, and who used these regularly without prompting. These children viewed text illuminated by coloured light in an apparatus that allowed the separate manipulation of hue (colour) and saturation (depth of colour), at constant luminance. Many of the children reported improvements in perception when the light had a chromaticity within a limited range, which was different for each individual. A pair of plastic spectacle lenses ('experimental' lenses) was dyed so as to provide the appropriate chromaticity under conventional white (F3) fluorescent light. An additional pair was prepared having very similar colour but with a chromaticity outside the range in which perception was reported to improve ('control' lenses). Each pair was provided for 1 month in random order. The children kept diaries (36 completed) recording symptoms of eye-strain and headache. The children and those responsible for their assessment were unable reliably to distinguish 'experimental' from 'control' lenses. Nevertheless, symptoms were less frequent on days when the 'experimental' lenses were worn (P < 0.003).
我们挑选了68名儿童，他们表示在阅读时使用各自挑选的彩色塑料片放在书页上会有帮助，并且能在无人提示的情况下经常使用。这些儿童在一个能在恒定亮度下分别调节色调（颜色）和饱和度（色彩深度）的仪器中观看由彩色光照明的文本。许多儿童报告说，当光线的色度在有限范围内时，他们的感知能力有所改善，而这个范围因人而异。一对塑料眼镜镜片（“实验性”镜片）经过染色，以便在传统的白色（F3）荧光灯下提供适当的色度。另外还准备了一对颜色非常相似但色度超出据报道能改善感知的范围的镜片（“对照”镜片）。每对镜片以随机顺序提供使用1个月。孩子们写日记（36份完成）记录眼疲劳和头痛症状。孩子们以及负责评估的人员无法可靠地区分“实验性”镜片和“对照”镜片。然而，佩戴“实验性”镜片的日子里症状出现的频率较低（P < 0.003）。
