I had the dye, both rectally and through my ostomy. I didn't get to watch it rectally, because I was turned away from the screen, but when they went through my stoma, I got to watch what I could see, because I was able to turn my head and see the screen, after they gave my glasses back to me. I asked for them, after they made some comment about
did I see something, and I said I can't see anything, because I don't have my glasses on. <G> Neither one was painful, the rectal part was uncomfortable, but not what I would consider painful at all. Just be sure that when you're getting dressed afterwards, your cell phone isn't in your pocket where it can fall in the toilet. <G> Also, if they go through your stoma, you will need to either have a two piece appliance on, or be prepared to put a new appliance on when they're done. I took the stuff to put a new one on, because I wear a one piece convetec appliance with convexity.