I don't think there are any. Almost no one dies of pure dehydration by itself in our part of the world, at least not enough to perform these type of studies. JMO
The best place to look, and I think it is off limits for some good reasons, would be the grotesque experiments that the Nazi doctors did. From from what I have heard, they are detailed. I guess that would be irony alright!
Also, Hydrocephalus that Dr. Hammesfhar said she had can impede vision and also cause further brain injury if not treated. Which it was not. Again, no mention of that in the autopsy report that I could see, other than they drained some spinal fluid from the brain cavity with no further comment.
When I made the comment about no specialists on dehydration, I guess I was being sarcastic. However, now that I'm thinking about it. There should many autopsy reports on dehydration.
Several years ago a murderer escaped from prison in my desert state. He managed to evade capture for several days. Eventually he was found dead. I remember well, the media reports of his death. They went on and on describing how painful and horrible his death was, as a result of NO water. Many times people will get lost in the desert and the cause of death, I'm assuming, is usually dehydration.
Therefore, you'd think there would be experts on the effects of dehydration to the human body and plenty of autopsies in this country to back them up. Like you mentioned, the sick and evil Nazi doctors probably did experiments on the effects of it too. Getting scientific data from those barbaric killers, would be ironic, for sure.
The implication of the autopsy was Terri was blind before she was dehydrated, which from what you reported, was most likely not the case. To imply something by omission, is very similar to outright lying. I seem to recall Michael supporters here on FR, using the blind report of the autopsy as validation for killing Terri.