Adie's Tonic Pupil
March 3rd, 2023
Overview
Look For
- Dilatation of one or both pupils
- Unresponsiveness to light
- Intact accomodation reflex (near light dissociation)
Significance
- Indicates loss of postganglionic parasympathetic innervation of the sphincter pupillae and ciliary muscles.
This finding is commonly associated with knee / ankle areflexia (Holmes-Adie syndrome)
Causes of Adie's Tonic Pupil
- Viral infection
- Trauma
- Orbital tumour
- Vasospasm (migraine)
- Idiopathic
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