Yоu аre а visiоn prоfessionаl (TVI or COMS) who has just gotten a new student, Janette, on your caseload. Janette is currently 12 years old. When she was 7, she was involved in an automobile accident that resulted in her having a fairly significant head injury. While she is mobile, she is not verbal beyond some semi-predictable gestures. Janette is pleasant and eager to please. Which of the following is most likely the cause of Janette’s visual losses?