Madara and Obito probably knew some Medical Ninjutsu

[fiercerunner]

After all, you can't just put an eye into your socket in the span of a few seconds and have it actually work without connecting the nerves somehow, and you can't go removing and transplanting other eyes into people's sockets either, unless you know your stuff.

 

[Gerkak]

Yes they did but their healing factor may also be an explanation

 

[Defence]

Madara was just on swag. Nothing could harm him so no need for healing

 

[Angelic.]

hashi cell logic

and what if obito put in itachis eyes for sasuke wrong XD

 

[Beauty Busty Beast]

Madara was just on swag. Nothing could harm him so no need for healing

Black Zetsu disagrees, hihi <3

 

[Defence]

Black Zetsu disagrees, hihi <3

Hello again. Black Zetsu was just a means to get to Kaguya. Madara let her take over because he wanted the power

 

[Sasuke tyeezy]

Hello again. Black Zetsu was just a means to get to Kaguya. Madara let her take over because he wanted the power

Doubt it, as he questioned zetsu on why & what was happening.

 

[Nick01]

I know right.

 

[SIR UZMAKIMADARA]

They are still better medical ninja than sakura

 

[Demonic.]

Even Rin transplanted Obito's eye into Kakashi. No biggie.

 

[SUPERDEADLYKING]

eyes in naruto world = usb sticks XD