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Kids are addicted to cell phones, tablets, anything with electronic screens, the problem is it's bad for their eyes.
孩子们沉迷于手机、平板等拥有电子显示屏的产品，但问题是这些产品对眼睛有害。
What we're beginning to see is now with the use particularly of screens, say digital screens,
我们开始注意到，尤其是显示屏的使用，比如数字屏幕、
tablets, smartphones that even children are reporting dry eyes
平板，智能手机，甚至有儿童患上了干眼症。
Tears contain oil. In this YouTube video, the doctor is pointing out the oil glands that are in the eyelid.
眼泪中含有眼油，在这个YouTube视频中，医生所指的部位是眼睑中的油腺。
The tear film on the front of your eye is there all the time not just when you cry.
眼睛前面的泪液膜不只是流泪时才存在。
It's less than the tenth of the thickness of a human hair, but without it you probably wouldn't see at all
其厚度仅相当于人类头发丝的十分之一，但没有它，你根本就看不到东西。
With kids spending more time in front of a screen, for pleasure and for school, many may be at risk without knowing it.
不管是出于娱乐还是学习，孩子们在屏幕前花的时间越来越长，那么就存在患干眼症的风险，且人们毫不知情。
When you concentrate very hard on a task such as on a computer screen, you blink less,
当你非常专注于一个任务，比如盯着电脑屏幕，你眨眼的次数会减少，
and also instead of fully blinking you partially blink and so what's happening is damage is being done to the front of the eye
而且不是完全眨眼，这会对泪膜造成损害，
Tears aren't being produced.
眼泪也没有产生。
They evaporate and leave behind the salty content of the tear which can do further damage to your eyes.
眼泪蒸发，留下的盐分会进一步伤害眼睛。
But now there is an app to diagnose dry eyes. At this demonstration in London,
不过，目前有一款手机应用能够诊断干眼症，在伦敦展示会上，
the app asks users to answer simple questions to determine how long they can comfortably stare at a computer screen without blinking.
该应用程序会先让用户回答一些简单的问题，以确定他们在不眨眼的情况下能舒服地盯着屏幕看多长时间。
We're actually using the technology that potentially could cause problems, if you use a lot of it, to actually help us with the diagnosis.
该技术可以帮助我们诊断干眼症，但它或产生问题，如果你使用次数过多。
Those who try the app are then tested for dry eye.
使用该应用的用户查出了干眼症。
But doctors say even if you don't have the app, make sure to blink fully,
但医生表示称，如果你没有使用该应用，也要确保完全眨眼，
and blink often whenever you're in front of a tablet or computer screen and remind your children to do the same.
不管是在平板或是电脑屏幕前，确保要经常眨眼，而且要提醒你的孩子也这样做。
Carol Pearson, VOA News.
VOA新闻，卡罗尔·皮尔森为您播报。
