文章来源:未知 文章作者:enread 发布时间:2018-03-24 07:02 字体: [ ]  进入论坛
Get regular eye tests
If you work on a computer every day, experts recommend having a comprehensive eye exam every year to detect problems before they develop. During this test, you should tell the doctor how often you use your phone and your computer. You should also measure the distance from your eyes to your screen at work and tell your doctor, so your eyes can be tested at that distance.
Give your eyes space
The closer your phone/computer screen is to your eyes, the harder they have to work to focus. Studies on computer-related eye strain suggest that screens should be no closer than 40cm from your face. If this makes it hard for you to read, consider increasing the size of the text, rather than moving the screen closer.
Take breaks
This may not always be practical if you have a hectic1 job, but it's important to try to take regular breaks from staring directly at a screen, to give your eyes a chance to rest and rehydrate. While surveys have shown that many office workers take no more than half an hour a day away from their computer, it's recommended that you take a 15-minute break after every two hours spent at your screen. If this isn't possible, a study has shown that levels of eye strain are much reduced when workers take at least four five-minute breaks a day, on top of a half-hour lunch break away from their computer.
Reduce glare
Glare is one of the biggest causes of screen-related eye strain. You can negate2 it by ensuring that you are using your phone or computer in a room where the lighting3 is bright enough. If your device is consistently brighter than your surroundings, this will lead to eye strain and fatigue4. Something else that can help is an anti-glare screen filter on your monitor or phone. If you wear glasses, some experts recommend buying lenses with anti-reflective coatings.
Exercise your eyes
Staring at a screen continuously for hours on end causes focusing fatigue. To avoid this, many eye experts recommend the “20-20-20 rule” – looking away from your phone/computer screen every 20 minutes and focusing on an object at least 20ft away for at least 20 seconds. The science behind this trick is that looking at objects at a distance relaxes the focusing muscle in the eye, helping5 to reduce fatigue.
We don't realise it, but our eyes blink differently and less frequently when we are staring at our phone or computer screen. Normally, we blink about 15 times a minute, but this drops by a third while we are looking at screens – and the blinks that do occur are typically partial blinks, meaning that during the blink phase the upper lid doesn't come all the way down. This reduced blinking ability makes it difficult for the eyeball to remain moist, since the tears coating the eye evaporate more rapidly. If you find you have dry eyes as a result of excessive screen use, experts recommend either using artificial tears to refresh your eyes or resetting6 your natural blink frequency through an exercise where you blink slowly 10 times, as if shutting your eyes for sleep, every 20 minutes.
Make your screen more eye-friendly
You can take steps to make your screen easier on your eyes, such as making the text larger, increasing your device's refresh rate to ensure less flickering7 of the screen, and shifting the screen's colour levels away from the blue end of the spectrum8 and towards the softer yellow end. This is important, because the retina contains blue-light-sensitive molecules9; some studies have suggested that constant intense exposure to blue light can damage the retina.


1 hectic jdZzk     
  • I spent a very hectic Sunday.我度过了一个忙乱的星期天。
  • The two days we spent there were enjoyable but hectic.我们在那里度过的两天愉快但闹哄哄的。
2 negate F5tzv     
  • Our actions often negate our principles.我们的行为时常与我们所信奉的原则背道而弛。
  • Mass advertising could negate the classical theory of supply and demand.大宗广告可以否定古典经济学的供求理论。
3 lighting CpszPL     
  • The gas lamp gradually lost ground to electric lighting.煤气灯逐渐为电灯所代替。
  • The lighting in that restaurant is soft and romantic.那个餐馆照明柔和而且浪漫。
4 fatigue PhVzV     
  • The old lady can't bear the fatigue of a long journey.这位老妇人不能忍受长途旅行的疲劳。
  • I have got over my weakness and fatigue.我已从虚弱和疲劳中恢复过来了。
5 helping 2rGzDc     
  • The poor children regularly pony up for a second helping of my hamburger. 那些可怜的孩子们总是要求我把我的汉堡包再给他们一份。
  • By doing this, they may at times be helping to restore competition. 这样一来, 他在某些时候,有助于竞争的加强。
6 resetting 8b631b0acab967515a7b12e88c643e11     
v.重新安放或安置( reset的现在分词 );重拨(测量仪器指针);为(考试、测试等)出一套新题;重新安置,将…恢复原位
  • Range represents the maximum strain which can be recorded without resetting or replacing the strain gage. 量程表示无需重调或重装应变计就能记录到的最大应变。 来自辞典例句
  • Adding weight to the puddle jumper by resetting its inertial dampeners. 通过调节飞船的惯性装置来增加重量。 来自电影对白
7 flickering wjLxa     
  • The crisp autumn wind is flickering away. 清爽的秋风正在吹拂。
  • The lights keep flickering. 灯光忽明忽暗。
8 spectrum Trhy6     
  • This is a kind of atomic spectrum.这是一种原子光谱。
  • We have known much of the constitution of the solar spectrum.关于太阳光谱的构成,我们已了解不少。
9 molecules 187c25e49d45ad10b2f266c1fa7a8d49     
分子( molecule的名词复数 )
  • The structure of molecules can be seen under an electron microscope. 分子的结构可在电子显微镜下观察到。
  • Inside the reactor the large molecules are cracked into smaller molecules. 在反应堆里,大分子裂变为小分子。
TAG标签: work screen eyes