Quote Originally Posted by Kraco View Post
It's too early to say that what happened to Sasuke is actually the permanent loss of sight caused by Mangekyou. Since it's so hard on the eyes, he could have simply used them too much in one day, and moreover, too many powerful techniques in one day, resulting in so severe exhaustion he couldn't keep it up anymore and it affected his normal vision as well, for the time being. It would seem more logical than hitting the hard limit so soon. While it's true Itachi managed to do with much less due to keeping his head cool and being overall better ninja, he should have still used Mangekyou every now and then over the years.
You're right, it is too early, but I'd like to point out the insane looking monster Sasuke conjured up. The one that started munching on his Susano'o. I can't help but think that Sasuke has used Susano'o WAY more than Itachi. We know that it uses both eyes so perhaps it uses them at an accelerated rate and Sasuke, in his rage, further accelerated that rate by bringing it to the next level.

Still I would be surprised if he lost his eyes this early. He is going to get them back, that is clear: either he will find a way to restore his eyes directly without using his brother's eyes (and why not, it's not like the clan knows everything) or Madara will save his ass and give him a new set of eyes.

Beyond all that it seems pretty clear that the writer wants to demonize Sasuke at this point. In just a handful of episodes Sasuke has went from rational avenger to full blown psychopath. I feel like this acceleration will be applied to other parts of the story, such as Sasuke going blind.