“Yes, we must,” the Strix asserted, quite interested in hearing what new adventurous disasters Dune had run into, but he continued speaking. “I can affix his eye back in place if you wish it? After we get the information you want.”
It would be a painful process, and it wasn't healing so much as... forcefully putting things where they were supposed to be. The eye might not even work properly after, requiring a burst of proper healing to become properly functional again. Or perhaps he would be permanently blind if it was not done soon enough. Gaius did not care, either way, and he may even forget to mention it.