Abstract
In the setting of a normal neurological examination, accommodation spasm is frequently attributed to a non-organic etiology. Occasionally, organic disorders are associated. In particular, central lesions involving the dorsal midbrain and quadrigeminal plate have been described with disorders of accommodation. A 36-year-old woman with idiopathic intracranial hypertension (IIH) had visual blur from pseudo-myopia due to accommodative spasm. Magnetic resonance imaging (MRI) revealed a pineal cyst that was reported to be an incidental finding. The patient had persistent papilledema and recurrent episodes of unilateral and bilateral visual blur from accommodative spasm despite medical management. A lumboperitoneal shunt effectively lowered her intracranial pressure (ICP). Thereafter, all symptoms of increased ICP, accommodative spasm and papilledema resolved. A functional, non-organic cause for accommodation spasm was not suspected. To our knowledge, this is the first report of isolated accommodative spasm as a presenting symptom in a patient with IIH. The patient's accommodative spasm resolved with lowering of the ICP. It remains speculative whether her pineal cyst played a role in triggering the accommodative spasm.
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