LED lights, computers, mobile phones, and other electronic screens in daily life can generate a large amount of blue light. Harmful blue light can easily cause retinal damage, macular degeneration, poor mental state, and other problems. The longer the 6-eye duration, the more obvious the damage. Therefore, it is necessary to prevent blue light
What is the principle of anti blue light lenses?
The surface of the lens is coated with a film to reflect harmful blue light, achieving the protective purpose of blocking blue light. The anti blue light factor is added to the substrate of the lens to absorb harmful blue light in daily life, achieving the protective purpose of blocking blue light.
Why do anti blue light lenses have a yellow background color?
Due to the principle of complementary colors, blue light+yellow light=white light, and when we want to remove blue light from white light, it is white blue=yellow. So why do anti blue light lenses have a yellow background color?
Due to the principle of complementary colors, blue light+yellow light=white light, and when we want to remove blue light from white light, it is white blue=yellow. So the lenses have a yellowish background color, be careful! The heavier the background color, the better
How to choose anti blue light lenses?
Many people like to buy cheap anti blue light glasses online
Anti blue light lenses with substandard quality have a heavy background color, which can easily cause eye discomfort such as photophobia when worn. Good anti blue light lens brands on the market, such as Zeiss and Yishilu, rely on substrate absorption and film reflection for their lenses, resulting in a light background color and comfortable wearing. Most consumers have no discomfort symptoms
Of course, the circle will also be higher. Slumdog girls can take a look at cheaper options, such as domestic lens brands that can also prevent blue light (wavelength: 400-450nm).
How to use anti blue light glasses correctly
1. Generally, it is not necessary to wear it outdoors, but if facing electronic products for a long time, please wear anti blue light glasses.
2. Insomniacs can also improve their insomnia by wearing anti blue light glasses two hours before bedtime. Because harmful blue light can inhibit the secretion of melatonin, affecting sleep, emotions, and human self repair; If you have to be in blue light before going to bed, it is recommended to wear anti blue light glasses for 1-2 hours, which can help with melatonin secretion, improve sleep and mood.
By comparison, most natural blue light (wavelength: 470-490nm) is harmless and beneficial. When engaging in outdoor activities during the day, not wearing anti blue light can better absorb beneficial light and improve mental health!
4. Anti blue light glasses are an important tool in modern life, and for workers who spend more than 6 hours watching computers, anti blue light glasses are indispensable. But visual workers who have extremely high requirements for color are not very recommended.
