"Terri's dad was joking to her about how when she was a child, she used to make one eye go crosseyed, apparently to tease her mother."
I noticed in the medical reports published by the Empire Journal that Terri tracked better with one eye than the other. I was thinking, it may have been because of this lazy eye. I wonder if any of the doctors examining her realized she evidently had a lazy eye.
My son had a lazy eye. Even with an operation and wearing prisms, it can still be detected by a very thorough eye exam. He wanted to be a pilot. They almost passed him, but the lady caught the eye problem when she repeated the test and said he would not be able to be a pilot in the military. He had a girlfriend with this condition and it was noticeable with her. Terri's eye may have gotten worse since the collapse.
In the video I'm talking about Terri's father seems to be musing about that very thing -- the possibility that Terri can't respond to everything in her visual sphere because she can't see well without glasses.