Board Thread:Naruto Discussions/@comment-24824148-20160724215526

As we all know those who used the Mangekyo Sharigan to much eventually started to go blind as a result. To combat this you had to recieve the eternal sharigan which from what I remember only Sasuke and Madara did.

Now from what I remember I don't remember seeing Kakashi having blindness symptoms or it ever being mentioned. I don't know if it was strictly Uchiha who suffered from it or what was the case but it seemed odd compared to how long he had it.

Do you guys know or was it just a plot convience that was never touched upon? 