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Home / Tips and Tricks / Thinking about getting computer glasses? read this first

Thinking about getting computer glasses? read this first



My entire career has been spent in front of a computer and staring at the light screen and I am far from alone.

The average office worker spends 1700 hours a year (!) In front of a computer screen. And that's only when we are in the office – we are also dependent on using our phones all day.

All such screen shots seem to come with various bad effects on our bodies and minds, such as eye strain, headache and insomnia. To combat these problems, you can retrieve a couple of computer glasses ̵

1; also called blue-ray glasses – that promise everything from eliminating eye strain to helping you sleep better.

  blue-light eyeglasses-2

Felix Gray brand blue light glasses.


Angela Lang / CNET

Once hard to find, there are now plenty of nice options from companies like Felix Gray and Peepers. You can even get blue light blocking glasses for your prescription glasses.

So does blue-eyed glasses really make a difference to all of us who are staring at a screen of 8 plus hours per day? The answer is not as simple as yes or no.

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02:13

Strong on a screen for hours every day bad?

The short answer? Probably.

Doctors and researchers are largely focused on two issues that stem from our ever-growing screen time: digital eye strain and blue light exposure.

According to the American Optometric Association, digital eye strain is "a group of eye and vision related problems arising from prolonged computer, tablet, e-reader and cell phone use." These problems range from blurred vision and dry eyes, to headaches and neck problems. .

By looking at screens all day, we are also exposed to blue light waves, which are said to cause a myriad of questions. There is conflicting evidence of how blue light exposure affects your eyes, but doctors and researchers agree that it affects your circadian rhythm. More about it below.

What is blue light?

All visible light we humans see contains the entire spectrum of the rainbow, from red to violet. Within that spectrum are blue light waves, which are said to help us keep warm and optimal.

What gives away blue light?

Each visible light source emits blue light waves, whether it be sun, a touch screen or a light bulb.

We get lots of blue light waves every day from the sun, but after dark we are still exposed to it from many artificial sources.

How does the blue light affect sleep?

When the sun goes down, the lack of light signals our bodies to start producing melatonin, the hormone responsible for falling asleep.

Before the advent of artificial light, the sun regulated our sleep plans. But today we are exposed to light all day and into the night. While exposure to any light waves slows our body's production of melatonin, blue light waves can be particularly problematic because they keep us alert.

On the other hand, blue light can help us overcome sleep problems by interfering with our usual circadian rhythm. For example, the lumos mask uses light therapy to alleviate the impact of the jet layer.

So what does my phone or computer screen have to do with this?

Compared to fluorescent lamps and bulbs light bulbs, LED lights can give away a significant amount of blue light.

Unfortunately for all of us who are cozy up to our technology after sunset, LED lights are used in countless smartphone, tablet and TV screens. Technical products that have an LCD screen, such as laptops, iPads ($ 329 on Amazon) and older iPhones, still use LED lights to illuminate their displays.

Is blue light harmful?

Blue light has been linked to every possible problem, from causing digital eyes to making us blind . However, there are many contradictory evidence of how accurate it is (or not) it really is.

The American Academy of Ophthalmology says there is no evidence that the blue light specifically provided by screens will cause eye damage, which we are exposed to blue light all day from the sun.

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Peepers blue-blowing glass.


Angela Lang / CNET

Speaking to CNET, Dr. Raj Maturi, a clinical spokesman for the American Academy of Ophthalmology, explained: "During the day you get 10 times as much blue light from the sun as you do from your computer screen. Has been developed to address this light. "

A study prepared by AOA, however, indicates that prolonged exposure to blue light (like sitting in front of a computer all day) can damage your retina – the innermost layer of your eye that sends signals to your brain to treat what you see.

Preventing Blindness, a nonprofit to alleviate vision loss, also says that early research suggests that blue light may contribute to eye strain.

What is blue Light-blowing glasses?

Blue light goggles have filters in their lenses that block or absorb blue light and in some cases UV light from coming through. This means that if you use these glasses when looking at a screen, especially after dark, they can help reduce the exposure to blue light waves that can keep you awake.

Many blue-rayed glasses you can buy also claim that you can reduce the eye strain.

Most are meant to be worn during the day while working in front of a computer and at night to prevent the blue light from the screens from keeping us awake.

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02:03

Should I get blue light blocking glasses?

That's because – do you want or need to watch your phone after dark, and do you have trouble falling asleep?

There is plenty of evidence that blue light affects when our bodies create melatonin, so if you use screens long after sunset, these glasses can help prevent you from stopping later than you want.

If you handle digital eye strain, there is an easy exercise you should try before investing in new glasses. Use the 20-20-20 rule: every 20 minutes, watch something at least 20 meters away for 20 seconds.

The idea is that this helps break your focus from your screen, so that your eye muscles can relax and stave off eye strain.

I write to me the article with a pair of blue lights that block glasses that I have used on and off for the past few months. While I'm not 100 percent sure they help the eyes, I notice that my eyes feel less tired at the end of the day.

Could it be a placebo? Sure.

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