如今，人们的凡是糊口一经离没有开电脑、手机，但这些电子产物正在带给人更多麻烦、欢乐的同时，也会导致眼睛委靡、远视加深等视觉课题。
有人指出，“电子产物所发出的高能短波蓝光是形成眼干、眼涩、眼委靡的首恶罪魁”，因而防蓝光眼镜应运而生，并且销量没有俗。
防蓝光眼镜真能损坏眼睛，依然仅仅一个墟市噱头呢？鄙人结论以前，咱们开始须要领会一下甚么是蓝光？
Blue light is a type of electromagnetic radiation with a very short wavelength that produces a high amount of energy. While it's true that light can damage your eyes under certain circumstances, there's no scientific evidence suggesting that blue light is harmful to our eyes. But many people still think it is, which is why blue light-blocking glasses are so popular.
蓝光是一种波长很是短、能量辽阔的电磁辐射。虽然正在某些状况下光泽确切会损害咱们的眼睛，不过今朝并没有迷信证明说明蓝光对于咱们的眼睛有害。没有过许多人仍然以为蓝光确切有害，这便是防蓝光眼镜如许受接待的缘由。
"Everyone is very concerned that (blue light) may be causing damage to the eye, and it's a valid concern, but there's no evidence it may be causing any irreversible damage," Dr. Rahul Khurana, clinical spokesman for the American Academy of Ophthalmologists, told Business Insider.
美国眼迷信会临床讲话人拉胡尔•库拉纳博士对于商业内幕网示意：“每集体都很是耽心蓝光大概会对于眼睛形成毁伤，这种惦记是正当的，不过今朝还没有证明说明蓝光大概会对于眼睛形成一切弗成恶化的损害”。
Blue light exposure is nothing new. In fact, the sun is the largest source of blue light. Moreover, blue light is also present in fluorescent and LED light.
蓝光照耀并没有少有。真相上，太阳便是蓝光最大的起因。其余，蓝光也生存于荧光灯以及LED灯中。
But if blue light isn't harmful, then why are we constantly rubbing our peepers when we're looking at our screens? The answer is eyestrain: More than 60 percent of people experience problems associated with digital eyestrain. And blue light, it seems, isn't the cause. Instead, our eyes are so strained because most of us blink less when we stare at our digital devices.
但假设蓝光是有害的，为甚么咱们正在看屏幕的时分会不绝揉眼睛呢？真正的答案是眼睛委靡：逾越60%的人生存因利用电子产物导致的眼委靡课题。而蓝光犹如并没有是形成这些课题的缘由。咱们的眼睛之因而会如许疲顿，是由于大普遍人正在盯着电子产物时，眨眼的次数会削减。
So if eyestrain is the real issue, blue light-blocking glasses are probably useless. However, wearing them could potentially help you get a good night's sleep. That's because blue light, research has shown, affects your body's circadian rhythm, your natural wake and sleep cycle. According to Harvard researchers, any kind of light — including blue light — can tamp down your body's ability to secrete melatonin, a hormone that helps you sleep.
也便是说，假设眼委靡才是真正的课题，那么防蓝光眼镜大概是无用的。没有过，戴上它只怕也许帮你改善就寝。由于争论说明，蓝光会作用人体的日夜节律，即生物钟。据哈佛大学的争论人员称，一切一种光（席卷蓝光）都会升高人体渗出褪黑素的才略，而褪黑素正是一种帮忙你入睡的激素。
除了防蓝光眼镜，收集上还风行着许多对于损坏眼睛的方式，例如上面这个“豆沙绿的桌面”。
据科普网站果壳网称，将电脑树立成“豆沙绿”仅有大概做到的仅仅让屏幕亮度变得没有那么耀眼。对付由眨眼次数少使泪液挥发过快形成的干眼，坐姿、与屏幕决绝等课题形成的视委靡、上身痛楚，“豆沙绿”是没有一切动机的，靠这个操作损坏眼力没有靠谱。
那么永恒利用电脑的你，应该若何损坏双眼呢？咱们整顿了多少条小贴士：
Position your screen 20-30 inches away from your face, and make sure your eyes are level with the very top of your monitor. The key thing to remember is that you should be looking slightly down at your work. The center of the screen should be located between 15 and 20 degrees below horizontal eye level.
将屏幕放正在决绝脸部50-70厘米的位置，确保你的眼睛与屏幕顶部齐平。记着，枢纽是当你看屏幕时视野应该是轻微向下竖直的。屏幕焦点应该位于水平视野以下15到20度之间。
Follow the 20-20-20 rule. Look away from your screen every 20 minutes for 20 seconds at a time and focus on a fixed point 20 feet away.
遵守20-20-20法律。每隔20分钟将视野从屏幕前移开，盯着20英尺（约6米）外的一个流动点看20秒。
Most monitors let you adjust the color temperature manually. It's best to use a warmer (yellowish) color temperature in dark rooms and a colder (bluer) color temperature in bright rooms.
大普遍再现器也许手动调治色调。最佳正在阴郁的房间里利用偏暖色调（偏黄），正在明朗的房间里利用偏暖色调（偏蓝）。
起因：howstuffworks.com，Wired，果壳网
编译：董静
审校：yaning