34056


I was reading this [answer](https://anime.stackexchange.com/a/33986/22312) and
it got me thinking, how did Sasuke obtain the EMS if Itachi's eyes were in
worse condition than his? Itachi's eyes were losing their light, and they
weren't in "good" state to be considered a good replacement. How did they heal
when they got transplanted?


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2016-07-01T16:02:45.540
34054
2021-05-06T22:33:31.363
2021-05-06T22:33:31.363
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question
naruto
Conditions to obtain Eternal Mangekyo Sharingan


Firstly, by attaining the Eternal Mangekyō Sharingan through transplantation
of eyes (of a blood relative, ideally a sibling's), the following upgrades are
received by the user:

  * Deteriorating vision is restored.
  * Their Mangekyō-based abilities are made stronger and they no longer suffer any negative side-effects from the usage. 
  * The user will retain all their previous techniques from their original eyes.
  * The user will be able to access the Mangekyō abilities of the donor.

So what basically happens is that, the eyes taken from a sibling get a new
host and whatever drastic conditions (related to vision) the donor had gone
through while they had the eyes, doesn't affect the new host.

In Sasuke's case, his vision was deteriorating, so he decided to transplant
his brother's eyes, which were in a similar condition. When the
transplantation is completed, he is able to see clearly and moreover, get an
increase in his dojutsu skills. This clearly proves that the precious
condition of the eyes doesn't reflect to the new owner. There is no other case
to prove otherwise.

Reference:
[http://naruto.wikia.com/wiki/Mangekyō_Sharingan](http://naruto.wikia.com/wiki/Mangeky%C5%8D_Sharingan)


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2016-07-01T16:47:58.097
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answer