One possibility in this fanfiction could be that Harry's wish for his glasses was a part of a much larger plot. The glasses could be the key to unlocking an ancient magic. When he wished for them, it set in motion a series of events. The glasses might start to glow and lead Harry to a hidden chamber. Inside, he discovers a prophecy that was meant only for those who could find it with the help of the special glasses. This would make the glasses not just an accessory, but a crucial element in the fight against evil.
In the fanfiction, when Harry Potter loses his glasses, it could lead to some really interesting character development. For example, his friends might have to step up and protect him more. Also, it could be a chance for him to discover new magical ways to improve his vision without the glasses, perhaps a spell or a potion that he has to search for.
Perhaps with his glasses, Harry would notice some small details that are crucial in the wizarding world. He might find hidden clues in the Hogwarts castle that would help him in his adventures against Voldemort. It could also change how he perceives the magic around him, as he would be seeing everything in a more accurate and detailed way.
He might end up in a place where he can't see clearly without his glasses and struggles to find his way. For example, he could be in a dark forest where he stumbles around, trying to figure out where he is and how to get back. Without his glasses, his magical abilities might also be affected in some way, like his spell - casting accuracy.
In the fanfiction, without his glasses, Harry might rely more on his other senses. His magical abilities could be enhanced in a different way. For example, he might be able to sense magic more acutely. Also, he could be more vulnerable to enemies as he can't clearly see who is approaching him. This could lead to some intense and dangerous situations where he has to rely on his friends to protect him.
Well, he might be stumbling around a lot. Without his glasses, Harry's vision is really poor. He could easily bump into things in the tunnel, like hidden magical creatures or even some sort of magical traps. Maybe he'd be using his other senses more, like his sense of hearing to detect any approaching danger.
Well, maybe he stumbles around blindly for a while, bumping into things and getting into all sorts of comical situations. He could also rely on his friends more to help him get around until he finds his glasses.
The story could be different as Harry's perception of the world would be clearer. He might not misinterpret some things he saw blurrily before.
In such a fanfiction, Harry might be at a serious disadvantage. Without his glasses, he'd struggle to see clearly. His opponents could easily take advantage of his impaired vision. He might have to rely more on his other senses, like his hearing or his magical intuition. Maybe he'd cast a spell to enhance his vision temporarily, but it could backfire or be disrupted during the brawl.
Well, it could be that Harry's glasses are actually in the possession of a dark wizard who wants to disrupt Harry's life. Without his glasses, Harry would struggle to see clearly and defend himself. However, with the help of his friends, he might be able to track down the dark wizard and retrieve his glasses. This could lead to an epic battle or a series of clever magical maneuvers to outwit the enemy.
He could misidentify people. Maybe he mistakes a Slytherin for a Gryffindor and gets into an awkward situation. It would be a humorous scenario where he has to quickly correct himself.