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Does blue light damage the eyes? _Industry information_

by:Eugenia     2022-03-11
Blue light is a kind of visible light that is particularly harmful to the eyes. Computers, TV screens, energy-saving lamps, fluorescent lamps, digital products, Yuba, etc. in life all have a certain amount of blue light. The wavelength of blue light is short, the power is great, and the damage to the eyes is also very large. Therefore, it is necessary to protect the eyes from blue light. Let's take a look at the damage of blue light to the eyes. What are the harms of blue light? The wavelength of blue light is 400~500nm, which is very powerful and destructive. Blue light can penetrate the lens and directly reach the retina, which will cause damage to vision and accelerate the oxidation of cells in the macular area. Blue light is even more damaging to a baby's vision. During the period of 0-2 years old, 70% to 80% of blue light can penetrate the lens and reach the retina. In the age group of 2 to 10 years old, about 60% to 70% of the blue light will be irradiated on the retina. It can be seen that if there is no protection If so, a large part of the blue light causes damage to the retina. If the eyes are exposed to blue light for a long time, the blue light penetrates the lens to the retina, accelerates the aging of cells in the macular area, and will produce a large number of free radicals, resulting in the production of cataracts, and the degeneration of the macular area, causing macular degeneration and vision. serious decline. When the eyes are exposed to blue light for a long time, but no protective measures are taken, these large amounts of irregular frequency short-wave blue light irradiating the retina will generate free radicals, and free radicals will damage the retina and lead to the decline of retinal pigment epithelial cells, and the decline of epithelial cells will cause The lack of nutrients in light-sensitive cells causes vision damage and vision loss. Long-term exposure to short-wave blue light without preventive measures, blue light will also cause damage to the optic nerve, but the nerve damage will not be repaired, which will lead to permanent vision loss and blindness. Long-term exposure to blue light can also easily cause blurred vision, visual fatigue, deepening of myopia and so on. People who are exposed to blue light for a long time can wear anti-blue light glasses to protect their eyes.
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