Maybe it's a form of power play. By taking Harry's glasses, Draco is asserting his dominance. In the wizarding world, status and power are important, and this could be Draco's way of showing that he can take what he wants from Harry, who is often seen as his rival.
On the other hand, it might lead to a more complex relationship. Maybe Harry starts to see Draco in a different light, as someone who is more than just a one - dimensional bully. He might start to wonder what deeper issues Draco has that would make him do such a thing.
It could slow down the plot. For instance, if Harry's glasses are constantly malfunctioning, he might miss important clues or signals. This would add more obstacles to his journey of solving mysteries or fighting against the dark forces.
In this fanfiction, his glasses could have a disorder where they constantly fog up, no matter the temperature or humidity. It would be really annoying for Harry. He might be in the middle of a battle with Death Eaters or trying to solve a mystery in Hogwarts, and he has to keep wiping his glasses to see clearly.
Draco could be acting on orders from someone else. For example, if a more powerful dark wizard or a Slytherin senior told him to do it as part of a scheme to disrupt Harry's focus and make him more vulnerable to attacks, either physical or mental.
There could be. Fanfiction is a very diverse space where fans explore all kinds of relationships and scenarios between characters. But this particular theme might be a bit controversial as it goes against the more traditional view of the characters in the official story. Also, different fanfiction platforms may have different policies regarding this type of content.
Harry is known for his kindness and loyalty. So, he would take care of Draco with a lot of patience. He would probably stay up all night if Draco was fussy, just to make sure he was okay. His protective nature would also mean he'd keep Draco safe from any harm, whether it's from other wizards or just from the general dangers in the wizarding world.
Well, it could be that Draco steals Harry's glasses as a prank. Maybe he wants to embarrass Harry in front of their classmates. He might hide the glasses in a secret place in Hogwarts, like in an old unused classroom, and Harry has to search for them while dealing with his blurry vision.