hmm might be then. I don't think you're over thinking it at all. that was actually one of the first things that I thought with Luna. after Snoopy passed away she hid under the table, Snoopy was her guide bun so to speak. when I went to approach her she'd attack in my direction grunting, probably out of fear as she didn't know who it was. but her attacks weren't too affective as she wasn't really pointing in the right place lol. I now talk to her the entire time to let her know its okay and where I am in the room. I even talk to her as I come up the stairs just saying "its me Luna". sounds really silly but it helps her locate me and know who it is.
I also don't pet her right away as she gets spooked, i put my hand in front of her nose and let her initiate pets. that way she knows its me and its not some big hand suddenly coming down on top of her.
you can also see if her eyes react to light..go into a dim room and then turn on a torch or lamp next to her. her eyes should instantly contract as they expand in low light areas. if not, then she's probably blind, if they react slowly then it might be partial sight.
it can be hard but usually in blind rabbits (or animals) their pupil will either turn white, or may be a bluey tinge compared to what it should be of almost pure black. I'm not sure if that applies to blue eyed animals, or rabbits though, for that matter.
you might also be looking at cataracts if the eye appears cloudy?
but I think to put your mind at ease and to get a definitive answer a vet appointment in the new year might be an idea
it might be something and nothing or she may have eye issues. but I think if you suspect something is best to get it checked out. blindness could be caused by a whole host of reasons, some more sinister. not to be a "negative nancy" but it can be caused by trauma, glaucoma, tumors, cataracts, abscess and so fourth. it can just be genetics or age, but for me the important thing was finding out why Luna was blind. my previous vet couldn't find out why, she was just blind, but I wanted to know why. was it something more sinister or is she really just the unlucky bun?
the vet will likely preform a few tests, including seeing if she reacts to having something waved infront of her eye. s/he will probably turn off the light and shine a light in her eyes, to see if they react to it. they will also probably have an extensive look. with Luna, they put a liquid in her eyes to check for an abscess.
I hope its something and nothing but, rabbits adapt extremely well
it just comes down to knowing her. for instance, Luna gets very upset if things are moved around in her home, and even cleaning out is stressful for her. so I try to minimize that and have pet remedy on almost all the time for her, as it really makes the world of difference.
here are a few links
https://smallpetselect.com/blindness-in-rabbits/
http://www.disabledrabbits.com/blindness.html
could you get a decent enough picture of her eye? somebody else might be able to weigh in their thoughts on how it looks