Long-term infrared radiation will cause damage to the eyes, mainly in the following aspects: 1, may cause radiation cataract, infrared is non-visible light wavelength is long, so it contains a large amount of energy, will have a significant heating effect on human tissue. After irradiating the eyes, it will cause the lens inside the eye to absorb too much energy, thus triggering lens degeneration, resulting in lens cloudiness and decreased transparency will form cataracts. Infrared rays have a strong penetrating power and can directly reach the retina when irradiating the eyes, thus damaging the structure of the retina and leading to complications such as atrophy and neovascularization in the macular region of the retina.