Commentary on Visual Hallucinations and Charles Bonnet SyndromeBenaur, Marina MD*; Kahn, David MD†Journal of Psychiatric Practice: March 2011 - Volume 17 - Issue 2 - p 142–144 doi: 10.1097/01.pra.0000396068.64472.ee Clinical Case Discussion Abstract Author Information The authors comment on two case reports of visual hallucinations due to non-psychiatric disorders: retinal detachment in a patient with schizophrenia, and Charles Bonnet syndrome. The physiology of visual misperception is reviewed, based on abnormalities along various points from the eye to the optic tracts to the occipital cortex. The approach to patients with visual hallucinations should include not only an evaluation for psychiatric disorders, but also an appreciation of possible non-psychiatric causes that may have major ramifications for care and potentially for preservation of sight. (Journal of Psychiatric Practice. 2011;17:142–144) *Columbia University Medical Center and New York Presbyterian Hospital †Columbia University College of Physicians and Surgeons © 2011 Lippincott Williams & Wilkins, Inc.