News for hackers. Stuff that matters.

A comment on Some cities are taking another look at LED lighting after AMA warning. Parent comment

Re:Some cities are taking another look at LED lighting after... by ianai on Sunday September 25, 2016 @02:10PM (#12576490)
I'm not an eye doctor. It was explained to me that LEDs output blue wavelengths not present in the natural environment. Our eyes filter out many wavelengths but never saw these during evolution so the light goes right through their filters. The energy then dissipates in your eye and causes damage.
[ Parent | on HN ]
Re:Some cities are taking another look at LED lighting after... by dpark on Sunday September 25, 2016 @02:29PM (#12576607)
> It was explained to me that LEDs output blue wavelengths not present in the natural environment.

So I'm no expert but I don't think this is true. All wavelengths of light exist naturally in some amount.

> The energy then dissipates in your eye and causes damage.

Energy "dissipating" in the eye is how you see.

[ Parent | on HN ]