Lasers produce highly concentrated beams of light that can pose risks to the eye if exposure occurs. The eye’s lens focuses incoming light, which can intensify the effect of laser radiation on sensitive tissues.

Different wavelengths affect different parts of the eye. Visible and near-infrared wavelengths may reach the retina, while ultraviolet and far-infrared wavelengths are typically absorbed in the front of the eye.

Reflections from metal, glass, or polished surfaces can redirect beams, sometimes in unexpected directions. This is why protective eyewear is often recommended in environments where lasers are in use.

Understanding these hazards helps users implement appropriate safety measures, including training, signage, and protective equipment.