Were Kabuto's eyes ever explained?

[Kooljay]

Back in the chuunin exams his eye got bloodshot. I never saw the point of this.

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[Killer B]

he's trying to use amatarasu

 

[NOemotions]

he's just trying to be something he is not... that's all.. /thread.

 

[Made in Heaven]

It was probably a dojutsu idea that kishi decided to scrap

 

[Gary777]

He got angry ...like tobirama ... Strong chakra causing fear like happened to suigetsu nsasyke n jyugo

 

[Kooljay]

he's just trying to be something he is not... that's all.. /thread.

What was he trying to be, besides a ninja affiliated with Konoha?

 

[Made in Heaven]

He got angry ...like tobirama ... Strong chakra causing fear like happened to suigetsu nsasyke n jyugo

this makes sense as well