" blue light ", everyone should have heard of it, and it is said that it is necessary to prevent blue light, which is beneficial to your health, but how to prevent it is a problem.
What is Blu-ray? For the standards of most countries, visible light with a wavelength range between 400nm and 500nm is blue light. Among various light sources, sunlight is one of the main sources of blue light . In addition to sunlight, blue light is also artificial light sources, including mobile phones, computers, tablets, LEDs, welding arc light, etc.
It can be seen from this that blue light can be seen everywhere in life. Will such blue light be harmful to your health?
According to the research experiment on phototoxicity, it was proved that it is harmful blue light in the 380~445nm band, of which 435+/-20nm is the most harmful band.
If a person is exposed to harmful blue light for a long time, it may also cause the macular area of the retinal retinal retinal, which may cause vision loss in mild cases, and in severe cases, retinal pigment epithelial cells will continue to die, causing more serious macular lesions , and even induce eye diseases, such as dry eye syndrome.
So, are myopic people more careful about their eyes health and they also need to buy anti-blue light glasses when wearing glasses?
In fact, you don’t have to worry too much. If it is not direct contact, such as the more dangerous welding light source . This is why most electricians need to wear a special welding mask when welding things.
The common blue light in daily life, such as TVs, mobile phones, tablets, etc., is less harmful to people's eyes, but it is not recommended that everyone play with their mobile phones after turning off the lights at night. Because, in proven studies, it was found that blue light may indeed affect people's circadian rhythm, especially when you often look at your phone at night, it will easily affect the quality of sleep.
What's more, there is currently no sufficient evidence to prove that the blue light emitted by ordinary electronic devices will cause the most direct harm to the eyes.
For what everyone calls anti-blue light eyes, since there is no information to explain that contact with blue light will threaten health, so anti-blue light glasses is not much different from ordinary glasses, and anti-blue light glasses often cost more, so you might as well choose according to your own economic conditions.
What we need to do is to minimize the time when blue light is exposed as much as possible, especially limiting the time when eyes are staring at the screen, especially office workers who often sit still for a long time. should not stare at the screen for more than an hour, then stand up and walk, and move your hands and feet.
, especially in night mode, in order to make our eyes more comfortable and better adapt to the surrounding light, etc., it is best to not touch any screen 1 hour or even two hours before bed.
At the same time, this is also an indirect way to improve sleep quality, and protecting eyes is also protecting the health of the body.
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