Board Thread:Warhammer 40k General Discussion/@comment-5846164-20121212083132/@comment-3580035-20121212084608

It probably depends on the power of the Navigator. From what I have read, the third eye is very dangerous and does shoot some sort of supernatural beam that is effective against daemons. However, this takes power out of the Navigator and leaves them weakened. Staring at the eye is probably not fatal but can have severe long term consequences e.g. insanity, foaming at the mouth, etc. That's why Navigators leave the third eye covered until it is needed.