Hadley and Foreman sit in the Seizure Room booth, which looks an awful lot like the booth of every other silly room PPTH has. Foreman comments that House didn't have any mocking to do over Seth's refusal to put in a cochlear implant. Hadley doesn't think there's anything to mock; Seth is happy being deaf and comfortable with his disability. Didn't he go deaf at the age of four? And they're trying to tell me that as soon as he went deaf, he was like, "oh, this is just fine. I don't miss hearing at all!" and was allowed to make a decision like that? Foreman points out that being deaf is a disability, not an identity. Hadley says it's kind of both, since deaf people have their own culture and their own language. A culture and language that Seth couldn't have known anything or cared about when he made the choice not to get the implant in the first place, right? I don't get it. Anyway, the lights are flashing in Seth's face and he's not seizing, but what Foreman and Hadley fail to notice is that something else is happening. Mom reports that Seth is now blind in his right eye. He's ¾ of the way to being Helen Keller!

When House hears the news, he remembers what CTB said about the limp leading the blind, which makes a lot more sense now that his patient has gone half-blind. He mutters it and Hadley asks what's up, but his response makes no sense and that's kind of par for the course for him so Foreman moves onto listing off Seth's current symptoms. Taub has a diagnosis, and House tells them to do whatever they want with Seth while he grabs his bottle of prescription sleep aids and takes off for an empty exam room.

Instead of going to sleep, he has a chat with CTB, asking her how she knew Seth would go blind before he did. CTB says she noticed Seth's C-reactive protein levels were slightly elevated, so a round in The Seizure Lab would probably make the inflammation worse, thus causing the blindness. By the way, the exam room has no windows, but it's still bright as hell in there. I'm beginning to wonder if this is leading up to a storyline about PPTH being built over an old toxic waste dumping site. House realizes that his subconscious is capable of remembering things that he couldn't access -- until the hallucination of it started talking to him. "Cool. An all-access pass to my own brain," he says, severely underestimating what that brain has to say and do. CTB recommends playing some music for Seth.