Dōjutsu

Dōjutsus are a unique type of kekkei genkai and kekkei tōta that grants special ocular abilities to the user.

Overview
There are two clans known for having a kekkei genkai and kekkei tōta in form of a dōjutsu, the Uchihas and Hyūgas who possess respectively the Sharingan/Rinnegan and Byakugan/Tenseigan.

Byakugan
"Main Article: Byakugan" It is the Hyūga’s kekkei genkai, which grants a good number of abilities to the person who develops them fully, it is one of the four great dōjutsus and is known as “The All-Seeing Eyes”. The Byakugan has three levels of evolution, with the third level being the strongest.

Golden Jōgan
"Main Article: Jōgan" A variation of Jōgan, it is only obtainable by Ōtsutsukis with a Jōgan that merge with others from their kind, the only improvement in this variation is that the field of vision, reaction time and one particular ability are increased.

Jōgan
"Main Article: Jōgan" It is the ultimate dōjutsu, being the originator of the Rinnegan and the Tenseigan as well, never an earthling has awakened this level and it’s not known if it’s possible, for that sole reason it’s deemed as exclusive to those who eat a chakra fruit (only Ōtsutsukis).

Rinnegan
"Main Article: Rinnegan" It is the Uchiha’s kekkei tōta, which grants a good number of abilities to the person who develops them fully, it is one of the four great dōjutsus and is known as “The Samsara Eyes”. The Rinnegan has three levels of evolution, with the third level being the strongest.

Sharingan
"Main Article: Sharingan" It is the Uchiha’s kekkei genkai, which grants a good number of abilities to the person who develops them fully, it is one of the four great dōjutsus and is known as “The Copy Eyes”. The Sharingan has three levels of evolution, with the third level being the strongest.

Tenseigan
"Main Article: Tenseigan" It is the Hyūga kekkei tōta, which grants a good number of abilities to the person who develops them fully, it is one of the four great dōjutsus and is known as “The Reincarnation Eyes”. The Tenseigan has three levels of evolution, with the third level being the strongest.