Table 1

Modified Dandy criteria for IIH3 79

Symptoms and signs of increased ICP (headache, papilloedema)
No localising findings on neurological examination (except sixth cranial nerve lesion(s) or rarely other false localising signs)
Normal neuroimaging with no evidence of venous obstructive disease
Increased ICP as measured by lumbar puncture (>25 cm CSF)
Normal CSF constituents
Awake and alert patient
No other cause of increased ICP present
Benign clinical course apart from visual deterioration
  • ICP=Intracranial pressure.