Adie syndrome, also Adie's syndrome, is caused by damage to the postganglionic fibers of the parasympathetic innervation of the eye and characterized by a tonically dilatedpupil. This clinical picture is often accompanied by signs of aberrant regeneration of these nerves and asymmetrically reduced deep tendon reflexes. In vertebrate anatomy, a ganglion is a tissue mass that contains the dendrites and cell bodies (or somas) of nerve cells, in most case ones belonging to the peripheral nervous system. ... It has been suggested that Parasympatholytic be merged into this article or section. ... An abnormally dilated pupil. ... The human eye The pupil is the central transparent area (showing as black). ... A reflex action or reflex is a biological control system linking stimulus to response and mediated by a reflex arc. ...
References
"Adie syndrome." Stedman's Medical Dictionary, 27th ed. (2000). ISBN 0-683-4007-X
Haines, Duane E. Fundamental Neuroscience, 2nd ed. (2002). ISBN 0-443-06603-5