I use the Gunnar Optiks (mentioned in the lifehacker link). They do seem to make my eyes less strained at the end of the day. I had this issue where I would work on the computer all day, and when I got home, I didn't even want to look at a computer screen because my eyes were so tired. Since I've been using the Gunnars, I've noticed I don't have that issue.

I think it definitely makes a difference, but you can also achieve a similar effect by using f.lux (https://justgetflux.com/). Although, I found f.lux to be a big buggy at times, especially with a multiple monitors setup.