Ianto was more furious at Owen than anyone else, really. Not because Owen had anything to do with what happened. But because Owen had refused to use any of their rapid healing equipment stating that eyes were too delicate to mess with.
Instead Owen bound his eyes and handed him over to Jack.
That turned out to be not as bad as it could have been. Jack reached into himself and found the bits that were still truly human letting him bathe, dress, feed, and make love to Ianto all the while reassuring him that things would indeed get better.