When Mikado shuddered, the doctor's hand twitched, wanting to reach out and hold him in place. But with one of his hands making sure that Mikado's optic nerve didn't snap and the other placing the disc, he didn't have a free one to do so.

"Stay still," he murmured as he kept working. He had to push the disc around very minutely until it was in the exact right place, a sweet spot that he'd found during countless experiments performed before this, to develop the technology.

Once it was properly placed, he slowly put Mikado's eye back into the socket with a level of finesse that came from lots of practice.

It was done.