A visual variant of Alzheimer's disease is a type of Alzheimer's disease that affects a person's vision and spatial awareness. There are several synonyms for this condition, including posterior cortical atrophy, visual Alzheimer's disease, and Benson's syndrome. Posterior cortical atrophy refers to the atrophy or degeneration of the brain's posterior cortex, which controls vision and spatial awareness. Visual Alzheimer's disease highlights the impact of the disease on a person's vision, while Benson's syndrome is named after the physician who first described the condition's symptoms. No matter the terminology used, it is essential to recognize the signs of this condition and seek medical attention promptly.