The hazards of computer blue light include damage to the retina, causing visual fatigue and affecting sleep quality. 1. Damage to the retina: when using a computer for a long time, computer blue light may cause damage to the retina, resulting in the atrophy or even apoptosis of the cells in the area, which may cause vision loss. 2. Causing visual fatigue: when exposed to computer blue light for a long time, it is also easy to cause visual fatigue, which may lead to myopia deepening or diplopia and other hazards. 3. Affect the quality of sleep: by the computer blue light, may also lead to the nerves in a state of excitement, it is not easy to enter the sleep state, which in turn affects the quality of sleep. The degree of harm caused by computer blue light is related to the exposure time and intensity of exposure, it is recommended to develop good habits in the use of electronic products in daily life to help reduce the above harm.