Yes, one that I would like answered is HOW is it possible for the doctors to have declared her PVS when they did so based on her lack of visual contact. Yet according to the autopsy she was blind. Something does not add up.
Dr. Thogmartin's case, simply put, is that the "visual" area of the brain was gone. Ergo, she was blind. That is a reasonable conclusion but it is not a certainty. There are two exceptions, also reasonable. 1) Individual physiology differs a great deal. What is generally true in neurological science may not be true for the individual. 2) The same science recognizes that injured brains have some capacity to shift functions -- vision, in Terri's case -- to other areas of the brain. This is not yet well understood, but it is well recognized.
I'm not a medic, so if I'm in error about any of the above, maybe some Freepdoc can give us any correction needed.
Whatever the brain function was in her case, Terri's ability to see up to a foot or a foot and a half is, imo, very well documented.