In this prospective study, visual outcome of 40 patients with idiopathic intracranial hypertension (IIH) was compared with clinical and neuro-ophthalmic parameters. The purpose of this was to determine any correlation to try and predict visual outcome for IIH patients. Parameters compared included visual acuity, visual field, contrast sensitivity, retinal nerve fibre layer thickness and visual evoked potential. The study reports that visual loss at presentation is probably the most important predictor of the final visual outcome in these patients. In univariate analysis, severity of visual loss, cerebro-spinal fluid pressures and abnormal visual evoked potential were associated with worse visual outcome or need of aggressive management. The authors suggest that patients presenting in an advanced disease stage fair badly despite medical / surgical management. Overall conclusions from the study are that early diagnosis and management are the cornerstone of management of this condition.

Clinical and neuro-ophthalmologic predictors of visual outcome in idiopathic intracranial hypertension.
Takkar A, Goyal MK, Bansal R, Lal V.
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Claire Howard

Salford Royal NHS Foundation Trust, Salford, UK.

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