He wasn't even sure if he could take care of himself, which may have been the most horrifying prospect of all. Vision had a great deal of very practical uses, and to lose all of those at once...
He could hear the sound of something shifting, and he squinted at the Senna-shape even though he knew by now that it would be futile. “Hold on,” she said. “I'm looking for something... Aha! Here it is. I have no idea what the prescription on this is. There might not be one. But it's worth a try. Here.” The next thing he knew, something was being jammed onto his face. He blinked again... and to his surprise, the world came back into focus. Well, it came back into focus somewhat. Things were still blurry, especially at a distance, but he could definitely see more than he could before. He wouldn't be able to read anything anytime soon, but he could... walk. And he could tell more or less what Senna's features looked like again, for example.