F.lux adjusts the apparent color temp of your LCD display to correspond to the outdoor sunlight for the given time of the day in your part of the world. I have used it for years as I am on a computer for 10-20 hours daily and feel it can't hurt at least add that sort of thing to help my eyes and relaxation. DOn't know if it really works but I don't believe it will hurt.
It also lets you manually adjust the apparent backlight temp so it is the same all the tiime as well. Very handy utility.
I can say I do notice an improvement in my eye fatigue at the end of the day when I am running F.lux. And hey, it's free.
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