Uveitis/iritis is a very serious thing! It can cause blindness if left untreated. I've been getting it for years and they treat it with steroid eye drops like pred forte (prednisolone). You should verify with your eye doctor what they think it is. Hopefully you are seeing an opthamologist, but if they are not treating this correctly I would recommend you change doctors. It is not something external with your eye, it is inflammation in the eye. It is an extramanifestation of ibd. Pain, sensitivity to light, redness, blurred vision are some of the symptoms I have gotten with this. And it will occur in either eye. It was a big factor in my getting my cd diagnosis, when it just wouldn't respond to treatment. I actually got the iritis many years before my cd symptoms. Good luck!