What is the primary risk associated with Class 4 lasers?

The primary risk associated with Class 4 lasers is the potential for serious eye injury and skin burns. Class 4 lasers are the most powerful classification of lasers and can emit significant levels of energy. This high energy can cause immediate and irreversible damage to the retina of the eye, leading to permanent vision loss. The risk extends beyond just eye injuries; their ability to cause burns to the skin is pronounced, making them dangerous in environments where appropriate safety measures are not in place.

Exposure to Class 4 lasers can occur directly through accidental beam exposure or indirectly via reflected beams off surfaces. Therefore, the need for rigorous safety protocols, such as the use of protective eyewear and appropriate signage in areas where Class 4 lasers are being used, is paramount. Understanding the severity of the risks posed by these lasers is crucial in environments where their use is necessary, to prevent accidents and injuries.