Neurologist and author Oliver Sacks brings our attention to Charles Bonnett syndrome -- when visually impaired people experience lucid hallucinations. He describes the experiences of his patients in heartwarming detail and walks us through the biology of this under-reported phenomenon.
Oliver Wolf Sacks, CBE (born 9 July 1933) is a British-American neurologist, writer, and amateur chemist who is Professor of Neurology at New York University School of Medicine. Between 2007 and 2012, he was professor of neurology and psychiatry at Columbia University, where he also held the position of "Columbia Artist". Before that, he spent many years on the clinical faculty of Yeshiva University's Albert Einstein College of Medicine. He also holds the position of visiting professor at the United Kingdom's University of Warwick.