My uncle was just diagnosed with atrophy of the frontal lobe . He is 59 years old and has numerous other problems, depression , bipolar disorder, he was born without his corpus collosum and is mentally impaired. Recently, within the last few months, he has been getting dizzy and gets tunnel vision, at one point he even blacked out. He also has sleep apnea that he is suppose to use a C-Pap for but rarely does. My grandfather, my uncle s dad, had alzeheimer s, and so did his aunt. What does the diagnosis of frontal lobe atrophy mean and what can we expect?