Akademik
abdo - acut
abdominal aura
absinthism and hallucinations
accommodation-convergence micropsia
accommodative micropsia
acenesthesia
achromatism
achromatopsia
acoasm
acoenesthesiopathy
acousma
acoustic hallucination
acoustic phantasma
acquired centralized tinnitus
acquired immunodeficiency syndrome (Aids) and hallucinations
acquired synaesthesia
acroparaesthesia
ACT
active illusion