Alzheimer's is a degenerative brain condition which is the leading cause of dementia
in the world. The condition leads to progressive loss of cognitive function coupled with social impairment. Importantly, there are a number of reversible causes of dementia that must be ruled out when a diagnosis of Alzheimer's is being considered. Additionally, Alzheimer's rarely causes focal symptoms, such as rolling of the eyes into the head. Therefore, it is absolutely essential that your father be formally evaluated for other things that may be causing his symptoms, including epilepsy, brain tumors, stroke, thyroid disease, vitamin deficiencies, and other medical problems. If he appears lethargic, has slurred speech, or has any focal weakness he should be brought to an emergency room for immediate evaluation. As always the diagnosis and the management of your particular concerns will require a physical examination by his personal physician. Setting up a visit with his neurologist
or primary care doctor
to deal with these new symptoms is strongly advised.