Lasers

DID YOU KNOW?

As eyes focus light, a laser beam may be up to 100,000 times more intense on the retina than on the surface of the cornea. [1]

KNOW THE RISK

  • A laser is a device that emits focused light, often powerful enough to cut, scan, or measure with extreme precision. [2]
  • Moderate and high-power lasers are dangerous due to their ability to cause eye damage, skin burns, and even ignition of flammable materials. [1]
  • With high power lasers, even brief exposure to the beam or its reflections can cause permanent eye injury. [1]

MITIGATE THE RISK

1. Understand Laser Class Ratings

  • Never use a laser without knowing its class and associated hazards. Class 3B and 4 lasers can cause serious injury and require safety controls. [1]

2. Always Wear Protective Eyewear

  • Laser-specific safety goggles must be used when working near medium or high-power lasers. Match the eyewear to the laser’s wavelength and optical density. [1]

3. Remove Reflective Items

  • Do not wear watches, rings, or jewelry that might reflect the laser beam into your eyes or another person’s.

4. Respect Low-Power Lasers Too

  • While laser pointers seem harmless, direct eye exposure can still cause retinal damage. Never point lasers at people, pets, or aircraft. [1]

TOOL SAFETY REMINDER

Lasers are more than just beams of light — they’re precise, powerful tools that require thoughtful handling. Know your laser’s class, control access to the beam path, and always use proper protective measures.

REFERENCES

  1. Wikipedia – Laser Safety
  2. Wikipedia – Laser

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