What would happen to Harry Potter in a portkey situation without his glasses in fanfiction?

The plot could change significantly. For starters, his initial reaction to the portkey journey and arrival would be different. Instead of quickly taking in the scene, he'd be fumbling around. This could lead to him being left behind by his companions if they're in a hurry. Also, if there's a mystery to solve at the destination, his impaired vision might make him overlook crucial clues that are visible only to those with good eyesight.

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.

Well, without his glasses, Harry might rely more on his other senses. His magical instincts could be heightened. When dealing with the Snatchers, this could mean he'd be able to sense their dark magic more acutely. He could use this to his advantage, perhaps by using magic to disrupt their search for him. And the Snatchers might underestimate him because they think he's at a disadvantage without his glasses.

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.

He would probably be very disoriented. Without his glasses, Harry's vision is extremely poor. In the dungeon, which is likely to be dark and full of various obstacles, he might stumble around, bump into things, and have a hard time finding his way out. This could lead to some dangerous situations as he may accidentally trigger traps or run into unfriendly creatures.

Harry could be at a significant disadvantage without his glasses. He might misjudge distances when Nagini attacks, making it more dangerous for him. However, this could also lead to the discovery of new magical abilities, like a form of magic - based echolocation. Nagini might be used by the dark forces to take advantage of Harry's impaired vision.

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.

Perhaps a fanfiction where Sasuke discovers a Portkey in his world that leads him to Hogwarts. He has to adapt to the new magical environment and forms an unlikely friendship with Harry Potter. Together, they explore the secrets of both their worlds and use their combined skills to face challenges.

It could be used as a plot device to bring characters from both universes together for a common mission. Say a powerful villain has hidden important items in both the Naruto and Harry Potter worlds, and the Portkey allows Harry and Sasuke to travel between the two to retrieve them all. They would have to rely on each other's unique skills to succeed.

Perhaps in the fanfiction, Harry discovers a new spell or a magical item that can temporarily enhance his vision without glasses. But there could be a catch, like it only works for a short time or has some side - effects. This would lead to a whole adventure of him trying to find a more permanent solution while also dealing with the normal challenges in the wizarding world.