1. Eye injury: Harmful blue light has extremely high energy and can penetrate the lens directly to the retina, causing atrophy or even death of retinal pigment epithelial cells. The death of photosensitive cells can lead to decreased vision or even complete loss, and this damage is irreversible. Blue light can also cause macular degeneration. The crystalline structure in the human eye gradually absorbs some blue light and becomes cloudy, forming cataracts. Most of the blue light penetrates the lens, especially in children where the lens is clearer and unable to effectively resist blue light, making it more prone to macular degeneration and cataracts.
2. Visual fatigue: Due to the short wavelength of blue light, the focal point does not fall at the center of the retina, but rather at a point further forward from the retina. To see clearly, the eyeballs remain in a tense state for a long time, causing visual fatigue. Long term visual fatigue may lead to symptoms such as deepening myopia, diplopia, easy serialization during reading, and inability to concentrate, affecting people's learning and work efficiency.
3. Poor sleep: Blue light inhibits the secretion of melatonin, which is an important hormone that affects sleep and is known to promote sleep and regulate jet lag. This can also explain why playing with a phone or tablet before bedtime can lead to poor sleep quality and even difficulty falling asleep.
Manufacturers of various LED light-emitting display devices, such as televisions, computers, PADs, and mobile phones, often increase the blue light intensity of LED backlight sources in order to make their image quality more bright and beautiful. With the popularity of these electronic products and their penetration into every aspect of life, the number of devices exposed to blue light increases sharply. For ordinary people, blocking long-term exposure to blue light is the most effective way to reduce damage, And using anti blue light glasses can effectively solve this problem.
