Thor, the Asgardian god of thunder and a prominent character in the Marvel Cinematic Universe (MCU), is known for his distinctive appearance, which includes his hammer Mjolnir, his red cape, and his iconic red cape. However, in the MCU film “Thor: Ragnarok,” released in 2017, Thor loses his right eye during a battle with his sister Hela, the goddess of death. However, in the subsequent film “Avengers: Infinity War,” released in 2018, Thor is seen with a blue eye, seemingly having regained his vision. The change in Thor’s eye color left many fans curious about how he got his blue eye back.

The explanation for Thor’s blue eye in “Avengers: Infinity War” can be traced back to the events of “Thor: Ragnarok.” In “Ragnarok,” Thor loses his right eye during a fight with Hela. As the goddess of death, Hela proves to be a formidable opponent, and during their battle, she strikes Thor’s right eye with her weapon, resulting in the loss of his eye and a major change in his appearance.
However, in “Avengers: Infinity War,” Thor’s blue eye is seen when he joins forces with the other Avengers to stop the powerful villain Thanos. This change in his eye color is not explained explicitly in the film, but it is suggested that Thor received a prosthetic eye to replace the one he lost in “Ragnarok.”
The origin of Thor’s blue eye can be traced to a character named Rocket Raccoon, who is a member of the Guardians of the Galaxy and appears in “Avengers: Infinity War.” Rocket Raccoon, a talking raccoon with exceptional technical skills, is known for his ability to scavenge and create advanced gadgets. In “Infinity War,” Rocket Raccoon is shown to have a prosthetic eye, and he offers to create a new eye for Thor to replace the one he lost.
In a scene in “Infinity War,” Rocket Raccoon and Thor have a conversation where Rocket offers to create a new eye for him. Rocket explains that he has a prosthetic eye and can create a new one for Thor using his technical expertise. Thor initially declines the offer, stating that he has grown accustomed to the missing eye and that it serves as a reminder of his failure against Hela. However, Rocket persuades Thor to accept the offer, stating that they need all the help they can get in their battle against Thanos.
Rocket Raccoon then proceeds to create a new eye for Thor, which is shown to be a blue eye in the film. The scene depicts Rocket using his technical skills to construct a mechanical eye for Thor, which he implants in Thor’s eye socket, allowing him to see again with a blue eye.
The inclusion of the blue eye for Thor in “Avengers: Infinity War” serves as a plot device to show Thor’s resilience and determination to continue fighting despite his loss. It also highlights the camaraderie and teamwork among the Avengers, as Rocket Raccoon’s offer to create a new eye for Thor demonstrates the bond and support among the characters as they come together to face a formidable enemy in Thanos.
It’s important to note that the Marvel Cinematic Universe is a fictional universe, and the portrayal of Thor’s blue eye is a creative decision made by the filmmakers for storytelling purposes. The character’s appearance and abilities are subject to change based on the narrative requirements of the films and the creative choices of the filmmakers.
In conclusion, Thor’s blue eye in “Avengers: Infinity War” is a result of a prosthetic eye created for him by Rocket Raccoon, as shown in the film. The loss of his eye in “Thor: Ragnarok”