Be careful of your screen lights at home !!

Does the blue light emitted from LED screens harm your eyes?

Various articles have warned of recent reports by the French government agency that identified the dangers of blue light emitted by the LEDs used in screens.

These titles are of concern, as they depend on both; Today's date and phone or computer settings. Your eyes are now in real danger from blue light.

The light-emitting diode (LED) and the light-emitting diode (LED) are both the most popular. They are more energy efficient and more efficient than conventional lighting and are 90% cheaper than in past decades. All screens that contain LED emit blue light, as in many offices and homes.

Press news has been dampened - in France - by the agency regarding food, the environment, occupational health and safety, terribly. The authors of those reports claimed that their work "confirms the toxicity of blue light on the retina" and demonstrates the ability of blue light to disrupt sleep, as it has a link with its biological rhythm. Not only that, but they added that blue light from LED screens also has environmental damage.

Oh man, danger is ubiquitous, prominent too, and will appear. Even then, if you look a little bit, you will see a hint of relief. What the reports hit is that blue light has effects on our bodies and the environment. But the damage to the user's eyes of the screen is seriously exaggerated. Whether from the agency's reports themselves, press news, or the headlines that followed. So let's break the rule.

What is blue light?

Blue light consists of light that appears within the natural visible spectrum, and falls within the shortest wavelengths that we can see, i.e. between 400 and 500 nanometers. Likewise, the red light lies between 635 and 700 nanometers.

When the blue light is reflected off the surface, we can distinguish it - that is, exactly what its name means -. White light consists of several wavelengths of light that we can see. We see this by looking at lamps, screens and the sun.

There are so many wavelengths that we cannot know that they are dangerous. The violent waves emanating from the sun are also shorter than the visible spectrum, and as such they have enough energy to analyze our DNA. We cannot see infrared, due to the intensity of its wavelength. But we can feel it in the form of heat, and it can even burn us! But it is not as damaging to DNA as rays shorter than it do. The LEDs do not emit ultraviolet or infrared radiation, only visible rays.

Does the LED display emit blue light?

Yes, but it is no more than the rest of the lamps, provided they offer the same balance of shorter and longer wavelengths. The warm light has a more harmonious layer of "yellow", while the cool light - which resembles daylight - appears a little more blue. Sunlight has a luminance of ten times higher than typical indoor light for LEDs or screens, which means we are more exposed to blue light outside.

Are LED lights damaging your eyes?

In the vast majority of cases, no!

The risks to eye health from exposure to light are attributable to brightness. The retina contains cells called "photoreceptors" that capture light. As the bright light is able to destroy it.

All LED lights are subject to an ordered rating from 0 to 3, and this rating is approved by: US National Standards Institute and International Electronic Committee to regularly coordinate LED light stickers. Zero in this classification considers light to pose no danger to eyes, nor does a warning label require. LED lighting in homes and offices and your screen as well all have this kind of low damage rating.

Eye diseases caused by lamps increase with scale, but, to be sure, these diseases are 2 or 3 most damaging, and usually occur in industrial settings. Some are forced to deal with lights like this and are required to wear protective equipment that shields it from blue light, because blue light has a wavelength shorter than visible light. Of course, there is a concern about that, as it damages the retina as UV rays do.

Most of us have only experienced blue light experience through LEDs in our screens, and from safe-set ambient lighting. Although there are some concerns that LED lighting may lead to vision problems later on, the evidence for these studies is weak.

The risk of damaging our eyes from these sources is minimal compared to the risks associated with smoking, cardiovascular disease, or even premature aging. This is what was stated in an article at Harvard Medical School.

Does this mean I can look directly at the LEDs?

No, this is a very bad idea !

When looking at any bright light such as headlights or a camera flash, the photoreceptors in the retina panic, we call it “photoreceptor bleaching,” says Raj Maturi, a certified optometrist in Carmel, Indiana, and a spokesperson for the American Academy of Ophthalmology. Altogether, this ignites the fire at once and then takes a second after that to recover.

When the exposure to bright light is minimal, it only takes one second or so for our photoreceptors to return to see clearly. For the elderly, especially with different eye conditions, the time taken to return to sight may take fewer seconds, which may create dangerous situations while driving. And if you keep looking at bright light - regardless of the eye's instinct to stop you - the photoreceptors will be crushed, and they will release stressful chemicals, able to destroy near cellular tissue. This devastation may require an entire year of misery. In addition to the possibility of destroying the visual receptors, starting with the sun, it is able to destroy the eye by containing ultraviolet rays. So. No. are doing. that!! It doesn't matter how wonderful you find looking at a solar eclipse.

Okay well does that mean not looking directly at LEDs, totally safe for my eyes?

Not exactly, the French regulatory agency was right to point to the idea that LED rays are damaging our circadian rhythms. The biological rhythm is our body's harmonious cycle that tells us when to wake up or fall asleep.

When the optical receptors in the eye receive blue light, they interpret it as daylight and thus it is time to wake up. When you do not recognize blue light - especially - then this is a signal that it is nighttime, which is the time for the production of the hormone melatonin that helps us sleep.

If we start using screens late at night, it can trick our bodies into believing that it is still day, so melatonin production is delayed. The best way to maintain the sleep cycle is to trick it by placing the screens on night mode, Maturi said. This setting filters out blue light - it also makes the screen slightly orange - but the glass needed to filter out blue rarely filters it all. It won't hurt you, Maturi says, because it can be useful as a fashion case!

French government reports indicated the existence of risks from LEDs to the environment. This is not wrong, light pollution is a real problem. When an LED is used to illuminate the sky for our benefit it then messes with local animals, from birds to turtles, which use light and darkness as signals for specific activities that are supposed to take place.

Although that was not a point in the report, it did not give any value to the fact that LED lights contain heavy metals as well. This does not pose any danger to us in terms of lamps, but when broken in the home or office, it is important that they are not touched when cleaning. And it will be safer to transport it to the landfill. If you exclude LED lighting, by setting it in different settings, then it is just like a river, and it will harm the animals that live there.

But back to my eyes, if LED screens are safe, why does my eyes hurt when I look at screens for so long?

Assuming you have more healthy eyeballs than these, muscle strain, the eyeballs get disturbed by the presence of strange organs. Her preferred state is to look around to get all kinds of information about your situation, be it near or far. It is difficult for her to focus on a close point for a relatively long period of time, as it might happen when you read articles longer than this one.

The pain you feel after looking at screens is a slight strain on the muscles around and near the eye. You can give these muscles a break by looking away from anything for 20 seconds every 20 minutes, Matroy explains.