Originally Posted by xratedjm
with the sharingan when itachi used it i believed kakashi told everyone without it to close their eyes so does that mean it does horrible damage to human eyes and if that is the case is that why they keep making naruto have those beast eyes cause the sharingan doesnt have an effect on them??
He told them to close their eyes cuz Itachi would use the Tsukiyomi on them, that jutsu he used on Kakashi and Sasuke where he tortured them in their minds for 3 days. And they keep giving Naruto those eyes because its a side effect from using the Kyuubi's chakra.