Hi yogurtpopcorn… I actually never took her to the vet, it didn’t get worse than that day so I just kept an eye on her. It wasn’t secreting any infectious looking gunk, otherwise I would have taken her to the vet. She likely just scratched it. And since then, she’s had this happen here and there every once in a while and it’s no cause for concern. It typically clears up in two days or so. I have noticed if I’m overdue to clip her nails or if she’s shedding a ton and her blankets are extra furry/irritating to her eyes it might happen.
My other bunny has had this as well, and again it’s been an irritation, not infection. I think he had poked his eye with a piece of hay.
If the eye is really crusted and goopy, you could try to gently clean it if he/she lets you, but I would be very careful not to irritate it further. I also tried keeping it dry, but it was hard to do so because she was tearing quite a bit. I hope this helps?