Diagnosis:
This is a clinical diagnosis
Clinical features:
Ocular apraxia/ sticky fixation: the inability to move the eyes volitionally
Optic ataxia: inability to reach for a target under visual guidance in the absence of primary visual deficits, patients are able to reach under auditory guidance.
Simultinagnosia
Investigations to consider:
MRI: bilateral parietooccipital lesions
Consider testing for CJD