Figure 1. Mean cerebrospinal fluid pressure and weight before and 34 ± 8 months after surgically induced weight loss (p < 0.001, postoperative weight and cerebrospinal fluid pressure vs. preoperative values. (Reprinted with permission from Sugerman HJ, Felton WL III, Salvant JB Jr, Sismanis MD, Kellum JM. Effects of surgically induced weight loss on idiopathic intracranial hypertension in morbid obesity. Neurology 1995; 45:1655–1659.)