Abstract
Adie s tonic pupil is defined as a dilated pupil, constricting poorly to light and exhibiting light-near dissociation. The authors report an 18-year-old woman diagnosed with transient bilateral Adie's tonic pupil during a migraine attack. Work-up including neuroiaeaging disclosed no underlying detectable abnormalities. The association between tonic pupil and migraine is rarely reported. This type of transient mydriasis could result from postganglionic parasympathetic dysfunction, affecting the iris sphincter. This situation is different from the heterogeneous group with benign episodic unilateral mydriasis. Transient Adie's tonic pupil may be associated with migraine attacks. This association should be known to avoid unnecessary examinations.
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