Although it is not explicitly stated, Itachi may have kept his Sharingan activated so often because of his worsening vision. It is clear that he was almost blind when he died.

Even among the best, Itachi Uchiha was considered to be better than anyone else. Itachi Uchiha Was One Of The Greatest Ninjas ...

It would be a shame to make this list and not include one of the most beloved characters in the series, Itachi Uchiha ... mastered one of the most powerful mangekyo sharingan abilities, Kamui. With ...

The Sharingan is connected to Japanese gods (Image via Studio Pierrot) After he is thrown out of heaven, Susanoo slays a draconic snake called Yamato no Orochi, who delights in devouring children.

And he gained the Eternal Mangekyo Sharingan after he transplanted Itachi's eyes and saved himself from any risk related to blindness. And Sasuke was one militant-headed character from Naruto, as ...

Kekkei Genkai: Sharingan The Uchiha prodigy, Itachi, is one of the most complex characters in the series, and his journey from the village’s prodigy to a tragic hero is compelling. At the age of ...

During the clash against Itachi, Sasuke's Mangekyou Sharingan showcased the summoning of a perfect Susanoo, which had offensive weapons, such as swords, spears, and bows at its disposal.

From Itachi to Madera and Sarada, this truth has been tested time and again. And now, the Naruto IP has brought a new Sharingan to life that is insanely overpowered.

While Kishimoto is responsible for several plot holes in the story, there is a solid reason why Obito never lost his eyesight when fellow Sharingan users like Itachi, Sasuke, and even Kakashi did.