Adie’s tonic pupil

An abnormally dilated pupil that reacts poorly to light and somewhat sluggishly to accommodation, but will constrict with a dilute solution of pilocarpine; associated with Adie’s syndrome, a neurologic syndrome (due to an inflammatory process, such as from a virus, in the third nerve cilliary ganglion) that affects especially women between 20 and 40 and also is characterized by a lack of ankle-jerk and knee-jerk reflexes.