Laser safety
（重定向自Maximum permissible exposure）
![A European-style laser warning symbol](/Images/godic/202501/26/Laser-symbol-text.svg5725.png")
![Diagram of a human eye.](/Images/godic/202501/26/Human_eye_cross-sectional_view_grayscale5725.png")
![Typical US (ANSI) laser warning label.](/Images/godic/202501/26/Laser_label_25725.jpg")
![Maximum permissible exposure (MPE) at the cornea for a collimated laser beam according to IEC 60825, as energy density versus exposure time for various wavelengths.](/Images/godic/202501/26/IEC60825_MPE_J_s5725.png")
Laser safety is the safe design, use and implementation of lasers to minimize the risk of laser accidents, especially those involving eye injuries. Since even relatively small amounts of laser light can lead to permanent eye injuries, the sale and usage of lasers is typically subject to government regulations.