Her eyes, when they could be examined, did not respond to light.

The pupils did not constrict when a penlight was shone into them, which is one of the most basic indicators that the brain is maintaining some level of function.

Either her eyes were too frozen for the pupils to move, or her brain was so depressed in its function that it was not receiving or processing the light signal in a way that produced the expected response, or both.

Standard hospital thermometers did not have a useful reading for her.