Board Thread:Naruto Discussions/@comment-24860855-20140430042530/@comment-1705651-20140717235028

Maybe I phrased myself badly there. It is only useless when compared to the Sharingan and the Rinnegan.

These eyes can already see the color of chakra, but can't read deep enough to see the tenketsu. Except you don't really need this power to strike them if you already are knowledgeable enough to know their locations, so one of the Byakugan's uniqueness when compared to the other eyes is taken off when you realize attacks on tenketsu can be performed without them. The only real advantage over the other Dojutsu then is the ability to see in a near 360 vision and telescopic zoom, but the vast arsenal of powers the others eyes have far outweight this. It is more of a spy thing, it can't catch up to the other eye powers in battle.