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Table 1 Modified Dandy criteria

From: Management of idiopathic intracranial hypertension with repeated lumboperitoneal shunt malfunction

 1. Symptoms and signs of raised intracranial pressure.
 2. No localizing signs in the neurological examination (except abducens nerve palsy).
 3. Normal neuroimaging (except empty sella).
 4. Opening pressure of lumbar puncture of greater than 250 mm water, with normal CSF
 5. Alert and awake patient
 6. No other cause of raised intracranial pressure