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Thursday, 28 October 2010 09:22

Some LED lights are bad for the eyes

Written by Nick Farell
y_health

So don't stick them in your eyes kids
A French health agency is warning that some types of LED lights are really bad for your eyes.

The National Health Security agency warns that the light scattered by the blue LEDs, used to give a white light, pose risks to the retina and may alter the pigments of retinal cells. In addition, this type of light would also have consequences on AMD, the macular degeneration age-related illness not the chipmaker and aggravating effects on other eye conditions.

The agency has warned consumers about three types of diodes and LEDs which it thinks are riskier than conventional lighting should be withdrawn. The agency also asked manufacturers to develop a labelling system on products using diodes to better inform consumers.

Not all LEDs are evil. All have advantages, including a low cost, low power consumption and long life and some do not make you blind, the watchdog barked.

Nick Farell

E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
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Comments  

 
+6 #1 Fud_u 2010-10-28 10:49
How many millions does it take to figure that out?
 
 
+5 #2 BorgOvermind 2010-10-28 11:08
Quote:
"The National Health Security agency warns that the light scattered by the blue LEDs, used to give a white light, pose risks to the retina and may alter the pigments of retinal cells."

I concur with this study.
In order for the blue light to be generated at the same visibility as green light, about 10 times the energy is required, therefore the power output /light intensity (even if not noticeable by the eye) will also be 10 times larger. So yes, blue LED light is eye-dangerous, even at what is considered a low power level.
 
 
0 #3 Squall_Leonhart 2010-10-28 13:07
anyone stupid enough to look into any light source, whether it be a globe or the sun itself deserves to go blind.
 
 
+3 #4 droid_hunter 2010-10-28 15:31
I stumbled upon similar info when I was researching disadvantages from using LED's as primary lighting. And the conclusion was that it should be safe if you buy lightbulbs that are of 3000K color temperature and below, aka warm white LED's
 
 
+2 #5 007vsMagua 2010-10-28 16:47
This story needs to be more specific and site sources. "A French health agency..."? "National Health Security agency"? The only information I could find was a Paris hospital is recruiting newborns to test led light therapy to treat a specific condition.

Recruiting:

http://clinicaltrials.gov/ct2/show/NCT01136577

Research:

http://translate.googleusercontent.com/translate_c?hl=en&sl=fr&u=http://rechercheclinique.aphp.fr/-Grand-public-.html%3Frubrique&prev=/search%3Fq%3Dsaint%2Bantoine%2Bhospital%2Bparis%26hl%3Den%26rlz%3D1G1GGLQ_ENUS357%26prmd%3Divm&rurl=translate.google.com&twu=1&usg=ALkJrhhjTlB-HuWW6d1ln8itHlS38U6Ohw
 
 
+3 #6 yourma2000 2010-10-28 17:11
And they say watching too much TV gives you sqaure eyes was a load of bollocks, try saying that to people who own LED TVs :P
 
 
+8 #7 thomasg 2010-10-28 19:22
ha ha they have a banner ad for super bright LED's at the bottom of this article. Coincidence?
 
 
-1 #8 Nerdmaster 2010-10-29 08:27
I do not believe this. If it is true then going out at 1 to 2 o clock when the sun is very bright would blind you in an instant (as the sun produces much more blue but also uv light wich is even worse than blue light).
 
 
-1 #9 Nerdmaster 2010-10-29 08:30
Quoting BorgOvermind:
Quote:
"The National Health Security agency warns that the light scattered by the blue LEDs, used to give a white light, pose risks to the retina and may alter the pigments of retinal cells."

I concur with this study.
In order for the blue light to be generated at the same visibility as green light, about 10 times the energy is required, therefore the power output /light intensity (even if not noticeable by the eye) will also be 10 times larger. So yes, blue LED light is eye-dangerous, even at what is considered a low power level.


No not 10 times. Eyes are approximatelly 4 times more sensitive to green light than blue.
Also eyes have about the same sensitivity to red and blue lights.
 
 
0 #10 angelachristen 2011-01-07 11:55
Its such a very informative post.... I liked your blog very much. I must to say that i liked very much all the news you introduced here. Thanks for sharing.
Wholesale led lights
 

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