Simple visual hallucinations include images of unformed light, geometric shapes or designs. Complex visual hallucinations are formed images of people, animals, or scenes.m
●Etiologies of visual hallucinations include retinal disease, migraine, vision loss, neurodegenerative disease, alcohol and drug use, psychiatric illness, and toxic-metabolic encephalopathy.
●Clinical features that help distinguish among etiologies are simple versus complex content, monocular versus binocular involvement, insight, and associated symptoms
One must see a doctor to evaluate and isolate any of the bleh reasons as a cause:
Vision loss, release hallucinations
Dementia with Lewy bodies, Parkinson disease