Gulliver's world: Persistent lilliputian hallucinations as manifestation of Charles Bonnet syndrome in a case of cataract and normal pressure hydrocephalus

摘要

Charles Bonnet Syndrome (CBS) typically occurs in elderly people with peripheral vision impairment, or interruptions in the connections from eyes to visual cortex. The heterogeneity of presentations and causal mechanisms warrants clinical caution. In this report, we describe a case of CBS developing in the form of Lilliputian Hallucinations in an elderly gentleman, on the background of cataract and normal pressure hydrocephalus, the complexities arising out of such aetiogenesis, and its management. We emphasize upon the fact that CBS might develop through two concurrent mechanisms in a given individual. Treating one of these would mean persistent symptoms, and failing to recognize these would lead to continued morbidity.