I was think about getting one of these yellow tinted glasses instead of a screen filter (f.lux isn't enough for me). Anyone has experience with them? (i.e. some

I was think about getting one of these yellow tinted glasses instead of a screen filter (f.lux isn't enough for me). Anyone has experience with them? (i.e. something like this: http://www.amazon.com/GUNNAR-Gaming-Eyewear-Mercury-Frame/dp/B004BUMICS/ref=sr_1_3?ie=UTF8&qid=1316534750&sr=8-3 http://www.amazon.com/GUNNAR-Gaming-Eyewear-Mercury-Frame/dp...)