So, Madara and Izuna both had MS. Well, why didn't they just give each other each others eyes so they would both get EMS? I might be missing something, but i don't think you need your eyes and another persons set of eyes for EMS.
That was never confirmed or even mention, plus when Sasuke confronted Edo Itachi he said " because these are your eyes" so he clearly had itachi's eyes and not his own. Also, had would two eyes fit in one eye socket anyway? lolbecause it is the fusion of the eyes the creates ems not the switching .....that is why they have both designs because it is a combo of both the eyes
Ah, ok. Thanks for the clarification.1.Izuna died from the wound Tobirama give him during the fight between the Uchiha and the Senju.
2.One of the eyes don't have light in them....so, Madara giving Izuna(if he was alive)his eyes would be pointless do the fact Madara eyes had no light.