Uchiha and Sharingan InformationThe Uchiha clan were one of the founding noble families of Leaf village. The clan itself is said to be descended from the Hyuuga clan who possess the bloodline of the Byakugan eye. Because their clan possessed the Sharingan or "Wheel Eye," the Uchiha excelled at being able to read and fend off attackers. This made them prime candidates to help found the Konoha Military Police Corps. The organization itself would go on to incorporate the Uchiha fan symbol into their official logo.
Select few members of the Uchiha clan possess the ability to activate the bloodline Sharingan eye. This doujutsu (eye skill) gives one the ability to read Genjutsu, Taijutsu and Ninjutsu and then defeat it. As such, the clan member can view a technique being performed and see the tricks and movements required to be able to complete it. However the clan member can not copy techniques which are unique to another bloodline. It also gives one the ability to cast jutsu techniques only possible by possessing the eye.
The clan itself is known for their ties to fire. For a clan ninja to be seen as an adult, they must be able to utilize a Katon (Fire Element) jutsu such as Goukakyuu no Jutsu. Thus is the tie between the manipulation of fire and the mind of an Uchiha member.
Sharingan Eye Variations
Normal Uchiha Clan Member EyeThe normal eye for an Uchiha clan member resembles any normal
human eye with iris, pupil and sclera.
Sharingan partially activated - One CommaThis is the first variation of a partially developed Sharingan eye.
The clan members pupil will turn red and develop one of the wheel
swirls. When Uchiha Sasuke finally activated his Sharingan, his left
eye took this form.
Sharingan partially activated - Two CommaThis is the second variation of a partially developed Sharingan eye. The clan members pupil will turn red and develop two of the wheel swirls. When Uchiha Sasuke finally activated his Sharingan, his right eye took this form.
Sharingan fully activated - Three CommaThis is the final normal form of the Sharingan eye. The clan members pupil will turn red and develop three of the wheel swirls in both eyes. In this form the clan member can read Genjutsu, Taijutsu and Ninjutsu, learn how the skill is done and then copy it to be used later. This form can also initiate the Mangekyou "Kaleidoscope" form.
Sharingan - Uchiha Itachi Initial Mangekyou (Kaleidoscope) FormThis variation is the Mangekyou (Kaleidoscope) form while not fully changed. Sasuke initially caught a glimpse of this version of Itachi's Mangekyou which differed from his later version.
Sharingan - Uchiha Itachi Mangekyou (Kaleidoscope) FormThis is the rare Mangekyou (Kaleidoscope) form which is said to only appear in a few Uchiha members. Uchiha Itachi was able to finally master this form during the period he killed his clan. In this form Itachi is able to use the Amaterasu and Tsukuyomi Doujutsu techniques.
Sharingan - Hatake Kakashi Mangekyou (Kaleidoscope) FormThis Mangekyou Sharingan form was revealed by non-Uchiha clan member Hatake Kakashi. Whether this form is due to Kakashi or some inheritance from what Uchiha Obito was capable of is unknown. Using the eye, Kakashi can use a technique which appears to collapse space in around a focus point and transport it to another location.
Sharingan - Uchiha Madara Mangekyou (Kaleidoscope) FormThis Mangekyou Sharingan form was attained by Uchiha Madara. After developing the Sharingan, Madara and his younger brother trained against one another and eventually awakened their own version of the Mangekyou. The use of these eyes increased the brothers' strength and allowed them to take over leadership of the clan. Unfortunately the usage of the eyes lead Madara to lose his vision.
Sharingan - Madara's Brother's Mangekyou (Kaleidoscope)
FormThis Mangekyou Sharingan form was attained by Uchiha Madara's younger brother. After developing the Sharingan, both brothers trained against one another and eventually awakened their own version of the Mangekyou. The use of these eyes increased the brothers' strength and allowed them to take over leadership of the clan.
Sharingan - Uchiha Madara's Eternal Mangekyou (Kaleidoscope) FormUnable to accept being blind, Madara did everything he could to regain his vision. A desperate Madara eventually removed his brother's eyes to use as his own. As a result, Madara awakened a new more powerful set of eyes which allowed him to see the light once again. This new eye form would combine the look of both he and his brother's Mangekyou Sharingan.
Sharingan - Uchiha Sasuke's Mangekyou (Kaleidoscope) FormItachi sought to protect his younger brother from Uchiha Madara. To that end he used a jutsu to implant his Mangekyou and its techniques into Sasuke. When Sasuke's Mangekyou was initially activated, it resembled the version seen in Itachi. Later Sasuke's Mangekyou took on this form. It is unclear if this is the Eternal Form of Mangekyou, combing the form of Itachi's Mangekyou and that of Sasuke's, or if it is simply Sasuke own singular Mangekyou form alone.