My eye doctor is very much against blue light and has been for years. There are things you can do other than simply limiting exposure. I also have insomnia -- another anti-blue light group. Just met with a new sleep doctor a week or so ago and she recommended the f.lux software for my computer but I haven't really looked into it. She also wanted me to get yellow lenses for when I watch tv before bed -- have ordered from Amazon but they haven't come yet. Yes, colors will be altered. I went with the well reviewed cheap and ugly version.