Board Thread:Naruto Discussions/@comment-32104334-20171109032930/@comment-734582-20171110221705

Namikazenaruto9 wrote: Most Dojutsu's would forsee the chakra build up in his eye. Not really. We've only seen it with Nagato and Kaguya, really. While in theory any dojutsu can detect so, it seems that actually noticing the buildup of chakra in the eye takes considerable skill.

Ace Chouno wrote: The same should apply to Tsukuyomi, so Nagato should be able to act accordingly to it and that would explain why Itachi didn't use it against Nagato. Seems reasonable, yea. The best defense is to not get hit in the first place, so if Nagato sees it coming (Literally) then he can either avert is eyes or otherwise defend (buildup of chakra, maybe use Preta?)