Kröger R H, Binder S
Institute of Anatomy, Eberhard-Karls University Tübingen, Osterbergstrasse 3, D-72074 Tübingen, Germany.
Br J Ophthalmol. 2000 Aug;84(8):890-3. doi: 10.1136/bjo.84.8.890.
BACKGROUND/AIMS: Educational near work has been identified as a major risk factor for the development of juvenile progressive myopia. A study was undertaken to determine whether differences in focal length resulting from longitudinal chromatic aberration of the eye can be exploited to reduce the impact of near work on refractive development.
Infrared photorefraction was used to determine refractive states in young adult volunteers performing a task similar to reading and writing under various spectral environments. The potential benefits of the observed differences in accommodation demand were studied with a computational model of emmetropisation and myopia progression.
The refractive state was largely independent of the colour temperature of the illumination light (white paper) and the colour of commercially available papers (white illumination). Selective elimination of long wavelengths, however, significantly reduced the accommodation stimulus by about 0.5 dioptres.
Results from model calculations suggest that the use of paper which selectively absorbs long wavelengths may significantly reduce the myopiagenic effects of educational near work.
背景/目的：教育性近距工作已被确定为青少年进行性近视发展的主要危险因素。开展了一项研究，以确定能否利用眼睛纵向色差导致的焦距差异来减少近距工作对屈光发育的影响。
使用红外验光法确定年轻成年志愿者在各种光谱环境下执行类似于读写任务时的屈光状态。利用正视化和近视进展的计算模型研究了观察到的调节需求差异的潜在益处。
屈光状态在很大程度上与照明光（白纸）的色温以及市售纸张的颜色（白色照明）无关。然而，选择性消除长波长可使调节刺激显著降低约0.5屈光度。
模型计算结果表明，使用选择性吸收长波长的纸张可能会显著降低教育性近距工作的致近视作用。
