I typed a longer version of this but it got deaded so;
Technically speaking as seen through Madara, after being reanimated he lost his Rinnegan as they weren't in his deceased body. The eyes he held while reanimated and the ones held by obito/nagato are one in the same. With that being said, When Itachi was reanimated and used Izanami using his left sharigan his eye lost it's light and became dead. It didn't even regenerate as an Edo Tensei, shouldn't the left sharigan in sasuke's eye had have lost it's light forever? (In correlation to Itachi's usage)(Itachi's sharigan are the sharigan that's current in sasuke's eyes: see - Eternal Mangekyo Sharigan.)
Technically speaking as seen through Madara, after being reanimated he lost his Rinnegan as they weren't in his deceased body. The eyes he held while reanimated and the ones held by obito/nagato are one in the same. With that being said, When Itachi was reanimated and used Izanami using his left sharigan his eye lost it's light and became dead. It didn't even regenerate as an Edo Tensei, shouldn't the left sharigan in sasuke's eye had have lost it's light forever? (In correlation to Itachi's usage)(Itachi's sharigan are the sharigan that's current in sasuke's eyes: see - Eternal Mangekyo Sharigan.)