Are blue anti-light glasses really effective? Science behind the media threw – CNET France, Blue anti -light glasses | BlueBlock

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Blue anti -light glasses | BlueBlock

However, if you suffer from digital eye fatigue, there is a simple exercise that you should try before investing in new glasses. Follow the 20-20-20 rule: every 20 minutes, look for 20 seconds an object located at least 20 feet at least (about 6 meters). The idea is that it helps to deconcentrate from the screen, which allows the muscles of the eyes to relax and avoid eye fatigue.

Are blue anti-light glasses really effective ? Science behind media threw

Many ensure that blue anti-light glasses help relieve eye fatigue and migraines. Does science confirm these affirmations ?

The CNET France team with CNET.com

Posted on 04/20/2023 at 10:30 am

Are the blue anti-light glasses really effective? Science behind media threw

Prolonged exposure to screens can have various harmful effects on our body and mind, such as eye fatigue, headache and insomnia. To fight against these problems, one can use a pair of computer glasses, also called blue anti-light glasses, which promise everything, from the elimination of eye fatigue to improvement of sleep. Do these blue anti-light bésicles really make the difference for all those who look at a screen more than 8 hours a day ? The answer is not as simple as yes or no.

Watching a screen for hours every day is harmful ?

Doctors and researchers focus mainly on two problems related to the constant increase in time spent in front of a screen: eye fatigue and exposure to blue light.

According to the American Optometric Association, digital eye fatigue is ” A set of problems related to the eyes and the resulting vision from the prolonged use of a computer, a tablet, an electronic reader and a mobile phone »». These problems range from blurred vision to ocular drought, including headaches and cervical pain.

By fixing screens all day, we are also exposed to waves of blue light, which would be at the origin of a myriad of ailments. The evidence regarding the effects of exposure to blue light on the eyes are contradictory, but doctors and researchers agree that it affects the circadian rhythm.

What is blue light ?

All the visible light that we see contains the entire spectrum of the rainbow, from red to purple. In this spectrum are blue light waves, which they are said to help us remain alert and optimistic.

What emits blue light ?

Any visible light source emits blue light waves, whether it be the sun, a touch screen or a bulb. The sun sends us a large amount of blue light waves every day, but after nightfall, we are still exposed to many artificial sources.

How does blue light affect sleep ?

When the sun sets, the lack of light signals to our body that it should start producing melatonin, the hormone responsible for falling asleep. Before the advent of artificial light, the sun regulated our sleep hours. But today we are exposed to light all day and until the night. If the exposure to all light waves after nightfall delays melatonin production by our body, blue light waves can be particularly problematic because they keep us awake.

What is the relationship with the screen of our phones and computers ?

Compared to fluorescent and incandescent bulbs, LEDs can emit a large amount of blue light. They are used in countless LCD screens of smartphones, tablets and televisions.

Is blue light harmful ?

Blue light has been associated with all kinds of problems, ranging from digital eye fatigue to blindness. However, there are many contradictory evidence as to the degree of harmfulness of blue light.

The American Ophthalmology Academy says that nothing proves that the blue light emitted by the screens causes eye lesions, because we are exposed to blue sunlight throughout the day.

“” During the day, you receive ten times more blue light from the sun than from your computer screen. Our body has evolved to cope with this light “Explains Dr. Raj Maturi, clinical spokesperson for the American Ophthalmology Academy, to our colleagues from Cnet.com.

However, the research compiled by the AOA indicates that prolonged exposure to blue light (such as sitting in front of a computer all day) can damage the retina, the internal layer of the eye that sends brain signals so that he treats what we see.

Press Blindness, a non -profit organization which is devoted to the reduction of vision loss, also indicates that the first research suggests that blue light can contribute to eye fatigue.

What is a blue anti-light telescope ?

The glasses of blue anti-light glasses contain filters that block or absorb blue light and, in some cases, UV light. This means that if you use these glasses when you look at a screen, especially after nightfall, they can help reduce exposure to blue light waves that can prevent you from sleeping.

Many glasses blocking the blue light that you can buy also claim to help reduce eye fatigue. Most of them are designed to be worn during the day when working in front of a computer, and at night to prevent the blue light from the screens to prevent us from sleeping.

Do I have to buy blue anti-light glasses ?

It depends: do you want or have you watching your phone at nightfall and you find it difficult to fall asleep ? It is largely proven that blue light affects the moment when our body creates melatonin. If you use screens long after sunset, these glasses could help you not stay awake later than you would like.

However, if you suffer from digital eye fatigue, there is a simple exercise that you should try before investing in new glasses. Follow the 20-20-20 rule: every 20 minutes, look for 20 seconds an object located at least 20 feet at least (about 6 meters). The idea is that it helps to deconcentrate from the screen, which allows the muscles of the eyes to relax and avoid eye fatigue.

Images: Angela Lang/Cnet

Blue anti -light glasses | BlueBlock

We spend more and more time in front of the screens: telephone, computer, tablet, television surround our daily life. This predominance of screens is not without risk for our health: eye fatigue, headache, difficulty finding sleep.

It is high time to act against these ailments and protect your eyes from the harmful effects of the screens. The blue anti-light glasses developed by our teams of opticians will effectively relieve your eyes on a daily basis.

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