eidolon (plural eidola or eidolons) 1  An image or representation of an idea; a representation of an ideal form; an apparition of some actual or imaginary entity, or of some aspect of reality. 2  A phantom, a ghost or elusive entity.
Neuroleptics can also cause demyelination. Demyelinating diseases are traditionally classified in two kinds: demyelinating myelinoclastic diseases and demyelinating leukodystrophic diseases. In the first group a normal and healthy myelin is destroyed by a toxic, chemical or autoimmune substance.In the second group, myelin is abnormal and degenerates.euroleptics can also cause demyelination. Demyelinating diseases are traditionally classified in two kinds: demyelinating myelinoclastic diseases and demyelinating leukodystrophic diseases. In the first group a normal and healthy myelin is destroyed by a toxic, chemical or autoimmune substance.
Cause Cause. In most cases, the exact cause of neuromyelitis optica is unknown. However, studies of affected nerves have improved our understanding of the disease process. The autoantibodies signal immune cells to attack, resulting in damage to myelin and the breakdown of healthy nerves and tissues.