Base Itachi vs. Tsunade

[Tartarus]

I guess. Explain how blind itachi was able to do it

he wasn't completely blind yet. Sasuke lost his susanoo as soon as he went blind. Not to mention, why activate MS at all if it's not required, and why close up on the eyes when anyone uses Susanoo?

 

[Brother Numpsay]

he wasn't completely blind yet. Sasuke lost his susanoo as soon as he went blind. Not to mention, why activate MS at all if it's not required, and why close up on the eyes when anyone uses Susanoo?

I was trying to make sense how Madara was able to do it... I guess your right.