|s/he has delirium tremens (DTs); s/he hallucinates from having drunk too much alcohol
|s/he experiences something through eyes (e.g., has a vision, hallucinates)
|s/he hallucinates, has various hallucinations
|s/he is hallucinating, is "seeing things"
|s/he hallucinates, sees something that is not there
|s/he hallucinates, sees something that is not there (e.g., when taking drugs or when suffering from fever); s/he sees falsely (e.g., hunter who erroneously believes s/he sees a deer)
|s/he hallucinates, sees things that aren't there
|s/he hallucinates, "sees things"; s/he sees something that isn't really there, thinks s/he sees something but doesn't