The Sharingan is a special eye technique found in the Uchiha clan from the popular anime and manga series Naruto. It grants the user enhanced visual perception, allowing them to see fast movements and predict an opponent's actions. The Sharingan can also copy techniques, making it a powerful tool in battles. In addition to its basic abilities, the Sharingan can evolve into more advanced forms, such as the Mangekyō Sharingan, which provides unique powers. However, using these advanced abilities can lead to significant drawbacks, including potential blindness. The Sharingan is a key element in the story of Naruto and its characters.