"Does this seem consistent with the video of Terri following objects with her eyes? I'm not doctor but I gotta wonder."
Terri did not follow objects with her eyes. Watch the video again my friend.
I'll look tonight. It's hard to miss: anytime there's discussion about the case on TV, the clip is played endlessly on a loop. (Actually, I'm not sure that The Onion was far wrong in reporting that Teri died of embarrassment.)