It's entirely possible
Zoro wanted to see if he was worthy of Mihawks little knife necklace thing so he threw it it the air (like his cursed sword) and it slashed his eye which meant he still wasn't worthy to wield that knife.
Prior to One Piece's timeskip, Zoro's left eye was fully functioning and completely uninjured. Yet when the Straw Hats reunited after their respective adventures, Zoro's left eye was mysteriously scarred shut. Prior to the timeskip, his left eye had been seen glowing when using certain attacks.
Mihawk has been training Zoro for quite some time, and it is possible that Mihawk wanted to help Zoro control Observation Haki. In addition, Zoro's left eye is shown glowing in certain parts of the story when he gets really serious in battle – mainly during the Water 7 saga.
Nope. Seeing as Oda is so unpredictable with new gimmicks I figure there is a training component to his eye being shut. Can't guess why he would do it but Zoro is keeping his eye shut to condition himself.
Zoro's Eye | Fandom. Let us for a moment consider that Zoro can actually still see out his left eye and also drop all the theories about him having Hawkeye's eye or the even more ridiculous ones about him having the sharingan.
It is his trust in Luffy and Luffy's dedication to his dream. He believes Luffy has what it takes to be a Captain. Zoro believes in Luffy, he believes that Luffy would go to any length to keep his word. He sees this quality the first time they met each other.
It limits his sight and his depth perception in particular, and it would get hair in his open eye whenever the wind blows.
[One Piece] Luffy Gets Married with Hancock_2.
Luffy got his scar on his chest from Roronoa Zoro this happened while Zoro's being controlled on Episode 223 from 10:55 - 11:10.
During this arc, Zoro and Luffy, having lost their memories, confront each other and engage in a fight. It is during this fight that Zoro lands a strong surprise attack on Luffy, slicing his chest and thus giving him the X-shaped scar.
While Sanji does not have a Devil Fruit, if you were to ever eat one, there are certain ones that would fit him perfectly.
During his time on Momoiro Island, Sanji learns a move named “Sky Walk,” which allows him to jump to great heights and to be able to float mid air by making sonic booms in the air behind him.
So far, it is unknown how Sanji is able to light his legs up on fire. According to Oda, it is the burning passion of his heart that enables him to do so, and Sani has himself claimed that his flames burn hotter than any other flame simply because his passion is limitless.
That said, there is one crew member who stands above the rest in terms of loyalty to Luffy: Roronoa Zoro. The Straw Pirates' first mate has proven his loyalty on numerous occasions throughout the series, even putting his crew mates' well-being above his own life.
For this very reason, Zoro seems to have a soft spot for Tashigi and claims that she is the only person he cannot face in battle. Her impeccable resemblance to Kuina might have left a soft spot in Zoro's heart which gave birth to their bittersweet relationship.
Zoro is perceived as the vice captain of the Straw Hats. He is arguably Luffy's most loyal crewmate. He has displayed the most respect and dedication to Luffy by following his orders, proclaiming promises, and being the most vocal about Luffy achieving his dream of becoming the Pirate King.
Actually not just 1, he can eat 3 devil fruits.
Enma is the strongest sword possessed by Zoro of the Straw Hat Pirates right now.
Zoro set out on his journey to becoming the greatest swordsman in the world by defeating Dracule Mihawk, the man who currently sits on the stone. Over the years, he has come a long way and become one of the strongest pirates on the seas. Zoro has attained terrific strength, but he does not rely on a Devil Fruit at all.
In the two-year time skip, Zoro trained under Dracule Mihawk, popularly known as Hawk Eyes Mihawk. One of the popular theories is that the scar on Zoro's left eye is a training mishap. Many believe that Zoro lost his left eye during his training in some sort of accident or battle.
Mihawk gave Zoro the scar on his left eye to force him to learn to fight only using one eye. Sharp eyesight obviously improves one's fighting ability, but it's especially necessary/crucial for a swordsman's fighting style.
As it is shown many times whenever Zoro uses any powerful technique like ASURA (some kind of red light appears from his left eye ) so it is assumed that his left eye posses some kind of demonic power so obviously powerful than his left eye.
In the 98th volume of One Piece, Oda answered a fan question about what Devil Fruits would fit Nami, Zoro, Sanji, Usopp, and Franky best. Nami's Fruit is the Rumble Rumble Fruit, which lets its user wield the power of lightning.