Ibi K, Saito S, Yaginuma Y
Nippon Ganka Gakkai Zasshi. 1989 Jan;93(1):28-34.
We studied the influence of astigmatism on eye accommodation by means of a cathode ray tube (CRT) screen as a visual display terminal. Experiments using an infrared optometer and personal computer showed that artificial astigmatism over 1 diopter induced effects in the visual accommodation system of subjects in their twenties, decreasing the contraction velocity of accommodation, prolonging the settling time of accommodation and increasing the amplitude of accommodative fluctuation. Even if the visual acuity is fairly good with mild astigmatism, astigmatism need to be corrected for preservation of eye accommodation for VDT work in the young age group.
我们通过使用阴极射线管（CRT）屏幕作为视觉显示终端，研究了散光对眼睛调节的影响。使用红外验光仪和个人计算机进行的实验表明，超过1屈光度的人工散光会对二十多岁受试者的视觉调节系统产生影响，降低调节收缩速度，延长调节稳定时间，并增加调节波动幅度。即使轻度散光时视力相当好，对于年轻人群体中从事VDT工作的人而言，为了保护眼睛调节功能，散光仍需矫正。
