Many people know that ultraviolet rays can harm eyes. In fact, ultraviolet and infrared rays are usually absorbed by the cornea and lens, and generally do not touch the retina, so they are not the "number one killer" of the eyes. Among visible light, there is a kind of high-energy visible light-blue light, which will pass through the cornea and lens and touch the retina, causing immeasurable damage to the eyes. Among them, the flash of the camera, the light emitted by Yuba and the sunlight will have blue light. Experts from Qingdao Lisan Group pointed out that blue light will accelerate the oxidation of cells in macular area of retina, and overexposure will even damage visual cells. If the macular area is exposed to blue light for a long time, it will increase the risk of macular degeneration when the eyes are old, and may even cause permanent damage to vision.