In most patients with Adie syndrome the affected pupil is larger than normal (dilated) all the time and does not constrict very much or not at all in response to direct light. The pupil normally opens wider (dilates) in dim light or darkness, when focusing on far away objects, or when a person is excited. Normally the pupil gets smaller (constricts) in the presence of light or when focusing on nearby objects. When a person’s pupils are of unequal size, the term anisocoria may be used. When only abnormalities affecting the pupil are present, the disorder may be referred to as Adie’s pupil, Adie’s tonic pupil or, most commonly, tonic pupil. However, these findings may not develop at the same time. The term Adie syndrome is used when both abnormalities of the pupil and loss of deep tendon reflexes are present. Adie syndrome involves a usually non progressive and limited damage to the autonomic nervous system, which is the portion of the nervous system that controls or regulates certain involuntary body functions including the reaction of the pupils to stimuli. In rare cases localized disturbance of sweat secretion is associated with Adie syndrome (Ross syndrome). In most individuals, the cause is unknown (idiopathic), but Adie syndrome can occur as due to other conditions such as trauma, surgery, lack of blood flow (ischemia) or infection. Absent or poor tendon reflexes are also associated with this disorder. In most patients the pupil is larger than normal (dilated) and slow to react in response to direct light. Stay Informed With NORD’s Email NewsletterĪdie syndrome, or Holmes-Adie syndrome, is a rare neurological disorder affecting the pupil of the eye.Find a Rare Disease Patient Organization.Find Clinical Trials & Research Studies.Launching Registries & Natural History Studies.A Podcast For The Rare Disease Community.
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