an idiopathic postganglionic denervation of the parasympathetically innervated intraocular muscles, usually complicated by signs of aberrant regeneration of these nerves: a weak light reaction with segmental palsy of iris sphincter, a strong slow near response. Deep tendon reflexes are often asymmetrically reduced. See Also: tonic pupil. Syn: Adie’s pupil, Holmes-Adie pupil, Holmes-Adie syndrome, pupillotonic pseudotabes.