Think about it, Madara replaced both his eyes thanks to blindness and transfused Izuna's eyes instead, thus achieving EMS.
Then with Izuna's eyes Madara evolved it into Rinnegan.
That's why when Madara was brought back to life he didn't have any eyes. Since the eyes ain't his originally.
Then with Izuna's eyes Madara evolved it into Rinnegan.
That's why when Madara was brought back to life he didn't have any eyes. Since the eyes ain't his originally.