Well, perhaps it's set in a post - apocalyptic world. Carl is in a fight with some bad guys, and during the struggle, he loses his eye. The fanfic could focus on his journey to get revenge while also learning to live with his disability.
It could be a power - hungry warlord in the story's setting. This warlord might be the one who ordered an attack on Carl's group, leading to Carl losing his eye.
Well, Carl lost his eye when he got into a confrontation with a powerful enemy. The enemy was quick and caught him off guard, resulting in the eye loss.
Carl's eye loss occurs in a risky mission. A sudden explosion nearby causes debris to hit his eye, resulting in the loss. It's a pivotal moment that shapes his future in the comic storyline.
One possibility is that Naruto's loss of an eye could cause a shift in the power dynamics in the Hidden Leaf Village. People who already neglected him might see him as even more of a liability. However, this could also be the catalyst for some characters to finally realize how wrong they've been. Maybe some of his friends, like Shikamaru or Sakura, would step up and try to help him through this difficult time, and together they could change the way Naruto is treated in the village.
In this fanfic, the plot might focus on Naruto's internal struggle. Losing his eye while being neglected makes him question his place in the world. He could start to explore his heritage more deeply, thinking that there might be something in his Uzumaki bloodline that can help him. Along the way, he meets new characters who either help or hinder his progress, and this all builds up to a final showdown where he has to prove his worth despite his disability.
Well, it happened during a dangerous mission. There was a shootout and Carl got injured, resulting in the loss of his eye. The scene was intense and quite a shock for readers.
Well, it could be due to a powerful enemy attack during a fight in Wave. Maybe an enemy with a sharp weapon or some dangerous jutsu managed to strike Naruto's eye.