"Anti-blue light mobile phone film", "anti-blue light glasses", "anti-blue light table lamp"...
"Anti-blue light" products are becoming more and more abundant, where does blue light exist? Is blue light harmful to the human body?
Where is Blu-ray?
In life, we are often exposed to blue light, such as sunlight, television, computer, tablet, mobile phone, LED lamp, energy-saving lamp, incandescent lamp, all kinds of bath masters and so on.
What is Blu-ray?
Blue light is a high-frequency, high-energy blue-violet light of 400 to 500 nanometers in the spectrum, which is the most energetic part of visible light, and its real name is High Energy Visible Light.
Studies have shown that blue-violet light with a wavelength of 415-455 nm can have a damaging effect on retinal cells. It is a very energetic high-energy short-wave light, the energy is higher than red light and green light, can directly penetrate the cornea, crystals directly to the retina, accelerate the oxidation process of the macular area of the eye, but also affect the cornea, tear film, directly or indirectly lead to dry eyes, which is also known as "blue light damage" phenomenon.
Possible damage to the eyes caused by blue light:
Decreased vision
Harmful blue light has a very high energy, can penetrate the lens directly to the retina to cause the atrophy and death of retinal pigment epithelial cells, and the death of light-sensitive cells will lead to a decrease in vision.
Visual fatigue
The latest report shows that about 60% of Americans experience eye strain after long-term use of electronic devices. Due to the short wavelength of blue light, the focus point will fall further away from the retina, and in order to see clearly, the eyeball will be in a state of tension for a long time, causing eye fatigue.
Aggravates dry eyes
Long-term use of computers and mobile phones will cause dry eyes, stinging, photophobia and tears.
Can anti-blue light products really effectively prevent blue light?
Anti-blue light glasses
How to see me introduce so much is not very exciting, in fact, a lot of things are a bad start, I believe you will become more perfect, after all, every girl is a shining star.
Anti-blue light mobile phone film
The blue light of the mobile phone is still not necessary to prevent. At present, the country does not have a specific standard for the blue light hazard of mobile phone products, some people have used the relevant standards of lighting products to check, and found that regardless of whether there is a mobile phone film, the blue light hazard of the mobile phone screen is 0, the intensity is far less than the standard limit, and it belongs to the non-harmful category.
Anti-blue light films do not necessarily really block blue light. Some experiments have compared a variety of anti-blue light films, ordinary high-definition films, and plastic wraps, and found that anti-blue light films do not have better anti-blue light capabilities than other films.
To prevent blue light, you can eat more of the following foods:
● Orange-yellow foods, yellow corn, millet, rhubarb rice and other yellow grains, rich in lutein, zeaxanthin and carotene, can absorb harmful ultraviolet rays and short waves of light; egg yolk is rich in lutein and zeaxanthin, but also contains vitamin B2 and vitamin A
● Purple-red foods, such as purple rice, black rice, red rice, red beans, black beans, etc., are rich in anthocyanins and vitamin E
● Green foods, such as spinach, rapeseed, Cabbage, etc., contain a lot of lutein, carotene and vitamin C
summary
● The health effects of blue light are exaggerated to some extent
● In daily life, the intensity, quantity, and irradiation time of blue light are far from reaching the amount of damage to the eyes
● Healthy eyes in life is more important, it is recommended to use electronic equipment when turning the eyeballs, blinking more, resting every half hour for 30 seconds, looking at the distance every 1 hour, to avoid looking at the bright light source for a long time
- end -