Are LED Lights Bad for Your Eyes? We Find Out

LED lights are everywhere nowadays. But, can light emitting diode lights damage your eyes more than other types of light bulbs?

You will find LED light bulbs from household lights to the screens on your laptop, cellphone and even car headlamps and street lamps.

So, these types of lights are very common place still whilst they world is moving towards using more LED light bulbs wherever possible.

What Are LED Bulbs?

LED light bulb

LED stands for light emitting diode. LED lights work by having an electrical current pass through a semiconductor microchip, which then creates the illumination of light through the LED's.

Benefits of LED Bulbs

There are benefits to using LED bulbs vs alternatives artificial light sources.

The benefits from using LED bulbs include:

  1. More energy efficient than incandescent bulbs, fluorescent bulbs and halogen bulbs.
  2. Lower energy costs to run LED bulbs.
  3. Long lifespan.
  4. Color can be customised.
  5. Zero UV Emission means low heat output.
  6. More versatile than other types of bulbs as can make LED light strips
  7. More durable as can handle frequent turning on and off and external temperature differences like hot and cold environments.

Harmful Effects of LED Bulbs

There are some health concerns related to LED light exposure.

Here are some ot the concerns from being exposed to light from an LED light bulb.

1. Contribute to Eye Disease Risk

The French Agency for Food, Environmental and Occupational Health & Safety (ANSES) warned that they feel exposure to LED lights can have phototoxic effect on the health of the eye and increase a risk of age-related macular degeneration.

Spanish researchers also found that exposure to LED lights has a negative effect on the retinal cells of the eye.

Overall there is a possible risk to the health of the eye when exposed to LED light bulbs that emit an intense blue light wavelength.

2. Disrupt Your Circadian Rhythm

LED light bulbs have the same problem as fluorescent light bulbs in that they emit an intense amount of blue light. This blue light disturbs your natural melatonin cycle when you are exposed to the light after dark.

Current examples of how disturbing LED lights are can be seen in residents who are complaining about the intense LED light that is being emitted with street lamps that have switched to LED light bulbs.

The American Medical Association also gave a warning over the possible negative health effects that the blue light from LED lights can have on people.

Disruption to you circadian rhythm can have multiple negative effects on your health like:

  • Regular difficulty falling asleep, staying asleep, or both.
  • Excessive daytime sleepiness, or sleepiness during shift work.
  • Lethargy, fatigue and feeling exhausted.
  • Reduced alertness.
  • Difficulty concentrating.
  • Impaired judgment and decision making.
  • Trouble controlling mood and emotions.
  • Aches and pains, including headaches.
  • Stomach problems, in people who have jet lag disorder.

3. Negative Health Effects from Light Flicker

LED bulbs are also prone to producing flicker. Flicker is a rapid switching on and off state that happens so fast that the eye normally doesn't perceive it within your vision.

However, this rapid change is being picked up by your brain, which is why flickering lights can have an adverse effect on your health and lead to different symptoms.

We explain why flickering lights are bad in more detail here.

Final Thoughts

LED lights are the first choice for many people now around the world and are making up a large percentage of global light sales.

However, there are potential negative health effects from using LED lights that don't filter out flicker and ones emitting lots of blue light.

This is why at BLUblox we provide a solution with our Lumi Light Bulbs that are flicker free and be less disruptive to your body clock.

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