How long ago was she spayed? When they put a rabbit under an anaesthetic I believe they have to help keep their eyes moist, so for a day or so after their eyes may look a bit weird, but normally they clean it off quickly. I have a feeling yours is more like a couple of weeks ago, so I would think whilst it may be related, it would not be directly from the general anaesthetic, maybe more from being run down, or something. Equally, it might not be related in the slightest.