This 75-year-old right-handed woman presented with a nine-month history of progressive cognitive impairment. Her children reported that the first problem was, abruptly, an inability for her to see things on the left side of her visual field. In the hospital, she was found to have left homonymous hemianopia associated with a stroke in the right occipital lobe. During her admission she appeared disoriented, claiming she was at her mother’s house. Repeat imaging was unchanged, and metabolic and infectious workups did not show abnormalities. She returned to baseline before the discharge. After her discharge, her children noted progressive decline. She became increasingly forgetful about recent events and repetitive in her questions and statements. Due to the temporal correlation between these symptoms and the stroke, she was diagnosed with poststroke dementia.