Abnormal visual experiences in individuals with histories of hallucinogen use: a Web-based questionnaire.

Study at a glance

AI-extracted from the abstract

Characteristics	Cross-sectional survey Peer reviewed
Population	Individuals with histories of hallucinogen use
Key findings	A substantial proportion of respondents reported persistent visual disturbances such as visual snow, palinopsia, and halos, often associated with distress and impairment. The authors propose that these symptoms may represent a distinct syndrome related to hallucinogen use.