The user's original blind MS eyes are physically taken out and swapped.
So physically, they are Izuna's eyes.
Because the eyes go through a process and fuse together.I wonder why Madara and izuna didn't just switch eyes and both have ems then
No, it's because Izuna was dead. Tobirama Wounded him with Hirashingiri, A totally normal sword slash until proven otherwise, and madara took Izuna's eyes because he was blind.Because the eyes go through a process and fuse together.
Borrowed power is still power. Ninja's don't play fair.Then technically Sasuke is blind now and Kakashi is a fodder ninja without a left eye right?