Some time ago wrote to me about this place for our eyes and the retina damaging blue light component in the light of "energy-saving light bulbs", fluorescent lights and computer screens.
This excessively high proportion of blue light is not only relevant for hormone production (disturbing, for example, the pineal gland = pineal gland and its production of the dark hormone melatonin), but can also directly cause damage to the retina, which may be less "burned".
Before I go with the theme "Light biology" dealt in more detail, I asked, in fact, for me, I often work several hours a day on the PC, regularly a sharp pain, so to speak "back in the eye" fixed.
So I put her to like announced here, finally, a yellow eye-PC, which I now aufziehe daily for more than three months.
My settling-in period was zero, because my little changed color spectrum (towards yellow) not difficult for me, either in writing or else I'm like the "heavy" version that is not even the "light-glasses" risen, but thought , "more is better" because I do sit a lot.
The stabbing pain in the eye "background" stopped abruptly.
However: The yellow goggles can not prevent that, after several hours of work (for me at the latest by 2 clock at night, such as 
), Eventually gets dry eyes - a sign to take off the glasses and go to sleep ...
