Questions tagged [light]

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26
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3answers
11k views

Can blue light from LCD panels cause damage to the eyes?

In Japan there is quite a fad about LCD blue light filtering and how they might help reduce eyestrain, etc. The web site of a major computer accessory manufacturer has an English-language press ...
8
votes
1answer
4k views

Can blue light therapy contribute to Age-related Macular Degeneration?

High-intensity, broad-spectrum light has been an effective therapy for Seasonal Affective Disorder (SAD). More recently and less proven blue light therapy has stemmed from the discover of ganglion ...
8
votes
1answer
676 views

Do light boxes help Seasonal Affective Disorder?

Light boxes are sold as a treatment for seasonal affective disorder (SAD) and seasonal mood swings. The claims listed are: Helps to ease seasonal mood swings and winter depression, and help ...
27
votes
1answer
6k views

Is it preferable to use a computer in a darkened room?

In his latest blog post, Jeff Atwood states: We computer geeks like it dark. Really dark. Ideally, we'd be in a cave. A cave … with an internet connection. The one thing that we can't abide is ...
17
votes
2answers
8k views

Do LED lights of any colour damage your eyes?

There is a Daily Mail article from May 2013: Do 'environmentally friendly' LED lights cause BLINDNESS? In the article, they specifically focus on blue LED lights and the wavelength of this light ...
3
votes
3answers
3k views

Evidence for the absolute speed of light

I'm wrapping my mind over Einstein's Special Relativity. He postulates an abolute speed of light which concludes (in my perspective) to several illogical paradoxes. Is there any evidence, that the ...
16
votes
1answer
8k views

Do fluorescent lights cause stress?

I have heard that fluorescent lights are generally bad for you. The explanations range from the light being in the blue area of the spectrum: The signature "glow" of fluorescent lighting is ...