The Critical Role of Lighting Ergonomics in Workplace Safety

Why is lighting important?

In both industrial and office environments, proper lighting makes work tasks easier. Since about 85 percent of the information we process comes through our sense of sight, appropriate lighting—free from glare and shadows—helps reduce eye strain and headaches. It also improves safety by enhancing the visibility of moving machinery and other hazards, helping to prevent workplace accidents. Good lighting minimizes the risk of “momentary blindness,” which can occur when the eyes adjust to sudden changes between bright and dim areas.

The ability to “see” clearly at work also depends on several factors:

  • Focus time: Fast-moving objects are more difficult to see.
  • Object size: Smaller objects are harder to detect.
  • Brightness: Too much or too little light makes objects difficult to see.
  • Contrast: Low contrast between an object and its background makes it harder to distinguish.

What should you know about inadequate lighting?

Inadequate lighting can pose safety risks, as it may cause misjudgment of an object’s position, shape, or speed, potentially leading to accidents or injuries. It can also impact work quality, particularly in tasks that require precision, and reduce overall productivity. Additionally, poor lighting can be a health risk, as both excessive and insufficient light can strain the eyes, leading to discomfort (such as burning) and headaches.

To address insufficient lighting:

  • Replace bulbs on a regular basis, as older bulbs emit less light than new ones. Be sure to follow the manufacturer’s guidelines.
  • Regularly clean light fixtures, as dirt and dust, can reduce the amount of light they produce. Open-top fixtures allow dust to pass through, preventing buildup.
  • Install additional light fixtures in suitable locations.
  • Paint walls and ceilings in light colors to enhance light reflection.
  • Use more reflected light and task lighting to reduce shadows. For example, installing a covered light under a transparent guard on a grinding wheel can provide extra illumination for better visibility.
  • Avoid positioning workstations with light fixtures directly behind the worker.

Download our Lighting Ergonomics – Checklist

ASI is ready & able to serve your ergonomic needs in the interest of workplace health & safety. Contact us: 613-558-5385 or email us: info@auspicesafety.com