在光线暗处看书真的对眼睛有害吗?_BEC初级作文

在光线暗处看书真的对眼睛有害吗?

光线不足会引起瞳孔扩张，导致景深变小，即眼睛能聚焦的最近和最远的物体之间的距离变小。希迪博士说，费力地去变焦(通通过眼睛的调节系统)和费力去地改变两眼之间的视角(通过眼睛的收缩系统)可能会使你的眼睛和身体感到疲倦。当然，这通常是在被窝里看书的后果。

Seeing Clearly

看清楚

Dr. Sheedy says he assures his students that there isn't enough evidence to argue that what you do with your eyes leads to myopia (nearsightedness)： 'The predominant determinant of myopia is genetics.' No link to long-term damage has ever been conclusively shown, says Dr. Sheedy. 'It's an old tale, a ploy used by moms to get kids to go to sleep when they wanted them to,' he says。

希迪博士说他告诉他的学生现在还没有足够的证据能说明用眼习惯会导致近视：“近视的主要决定因素是遗传。”他说并没有确凿的证据证明长期损害跟近视之间存在关联。希迪博士说：“这只是一个古老的传说，是妈妈们希望孩子们去睡觉时常用的一个说辞。”

Electronic Age

电子时代

Reading on a tablet device won't damage your eyes, Dr. Sheedy says. His team has studied various fonts, computer displays and pixel resolutions, and found the difference in effect on the eye between reading e-ink and the printed word to be negligible。