Neuro-Ophthalmic

Papilloedema

Also known as: papilloedema, raised intracranial pressure, raised ICP, bilateral disc swelling, IIH, idiopathic intracranial hypertension, pseudotumour cerebri, brain tumour eye

Filed as: Emergency

Source-cited from the record's own evidence list. Clinical content programme led by Dr Ankit Mathur, PhD, Grad Cert Ocu Thera, B.S. Optom. How the clinical content is governed

Clinical decision support only

OptoGuide™ supports professional judgement and does not diagnose or replace clinician responsibility.

Overview

Swelling of both optic discs caused by raised intracranial pressure, with headache worse on waking or straining, brief visual blackouts on standing, and pulsatile tinnitus. Acuity is often normal at first while the blind spot enlarges, so normal vision offers no reassurance. It is a neurological emergency needing same-day imaging, and blood pressure is checked immediately because severe hypertension presents the same way.

Recognition

Symptoms: what patients report

Headache — worse on waking, bending forward, or coughing (raised ICP pattern).
Transient visual obscurations (TVOs) — brief, seconds-long visual blackouts on postural change.
Pulsatile tinnitus — whooshing sound in the ears, often positional.
Horizontal binocular diplopia — CN VI palsy from raised ICP.
Nausea and vomiting.
Visual acuity may be preserved until late stages.

Signs: what the examination shows

Bilateral optic disc swelling — elevated, blurred disc margins, peripapillary haemorrhages, disc hyperaemia.
Enlarged blind spot on visual field testing.
Normal visual acuity initially — chronic papilloedema causes progressive field loss.
CN VI palsy — abduction deficit causing esotropia; non-localising sign of raised ICP.
Absent spontaneous venous pulsations (SVPs) on fundoscopy — non-specific but supportive.
Normal anterior segment and pupils (unless very severe).

What OptoGuide™ covers for papilloedema

Pattern reasoning: what this combination of findings points to, and its differentiators
Don't-miss risks and escalation triggers
Management tiers with linked Australian therapeutics
Referral urgency, specialty, and letter drafting

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Sources

Standard texts: Kanski's Clinical Ophthalmology: A Systematic Approach, Oxford Handbook of Ophthalmology, Oxford American Handbook of Ophthalmology, Signs in Ophthalmology: Causes & Differential Diagnosis.

Full bibliography