ClinCalc Pro
Menu
NeurologyOphthalmology

Idiopathic Intracranial Hypertension

Modified Dandy criteria, MRI/MRV, LP for opening pressure, weight loss, acetazolamide, surgical options for refractory vision loss.

Source: ABN; consensus 2018

Step 1 of ~3
info

Recognise + Workup

Modified Dandy criteria: signs/symptoms of raised ICP (headache worse on Valsalva / lying flat / morning, transient visual obscurations, pulsatile tinnitus, papilloedema, diplopia from VI palsy); normal neurological exam except papilloedema ± VI palsy; no other cause of raised ICP; opening pressure >25 cm H₂O at LP (in correctly positioned adult). Risk: female, obese (BMI >30), reproductive age. Drugs: tetracyclines, retinoids, lithium, growth hormone, OCP (controversial).

Related

Curated clinical cross-links plus same-class fallbacks.

Decision support only. Always apply local guidelines and clinical judgement.