Board Thread:Theories and Speculation/@comment-1512913-20161122142914/@comment-25122992-20161125182902

Namikazenaruto9 wrote: than where did all that resentment come from? That much hate? And two if everyone gives up their eye than who would guide them? Or rather I would say that it was more likely that main branch didn't participate in giving up of eye ritual/ Actually, I have the way to explain it. I read the part of The Last novellisation which is already translated, and there it says that Moon Ootsutsuki learned to "sense" the world through concentrating chakra in their brain and creating "a mind eye". It effectively gave him a special form of "vision", although not an actual one, seemingly akin to the SM sensing. Toneri mentioned this when he recalled the times with his father, when they made secret visits to Konoha so Toneri could "see" Hinata (which was decided to be Toneri's bride already then), but when Toneri transplanted Hanabi's eyes, he expressed his desire to see Hinata with the real vision.

Since with that ability, they could easily bear the lack of eyes, it's more likely that both the branches have sacrificed their eyes without exceptions.