Ask HN: Do ”blue light” glasses work?

Ask HN: Do ”blue light” glasses work?
2 by benrmatthews | 1 comments on Hacker News.
I spend all day staring at computers, but don’t wear glasses. I try to take breaks for the sake of my eyes (and back). I’ve seen a lot of ads for glasses that reduce the blue light from screens. Do these actually do anything to protect my eyes? What are the best alternatives?