I don't know if they're related to RA, but I do know they can be caused by other things. My dog just recovered from corneal ulcers. Don't know what caused them. Ironically she went hypothyroid for the first time ever. As I sit and think about it, when I went hypothyroid 30 years ago I also had Sjogrens Syndrome. My point is that sometimes things have a domino effect....or just seem to happen all at once....like opening the floodgates. Hope you have the appropriate meds for the corneal ulcers.