Does laser harm the skin?
The severity of laser damage to the skin is relatively lighter than the damage to the eyes. Laser damage to the cornea can cause permanent vision loss, while laser damage to the skin is generally curable. However, with the widespread use of ultraviolet lasers and high-power lasers, the damage of lasers to the skin has become more serious. The skin exposed to lasers with wavelengths of 250nm-380nm will cause burns, skin cancer and accelerated skin aging. In particular, lasers from 280-315nm ultraviolet to blue light can cause the most serious damage to the skin. Exposure to the laser in the 280nm~400nm band will accelerate the pigmentation of the skin, and the laser in the 310~600nm band will cause the skin to produce photosensitivity. The 700~1000nm laser can cause skin burns or keratosis.
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Laser safety grades All laser safety standards are classified according to the potential hazards of lasers. For example, the American National Standards Institute (ANSI) Laser pointer safety standards divide laser products into four safety levels. According to this standard, all laser products manufactured and sold in the United States must be marked with a safety level. The safety of laser products to users is classified according to the harm of laser radiation. The relevant laser parameters that cause harm to biological tissues include laser output energy or power, wavelength, exposure time, etc. The safety level of laser products is also divided into four levels in China.
2021-10-13 11:40:08
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