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Pathology

Damage to optic nerve

Aetiology

Raised intracranial pressure, accelerated hypertension, Polythaemia rubra vera

Signs

Change in taste sensation on examination

Symptoms

Loss of vision

Investigations

Visual Fields: Loss of vision
Fundoscopy: Blurring of optic disc margins, loss of venous pulsation
Imaging: MRI to assess for underlying cause

Treatment

Treat underlying cause

Prognosis

Dependent on cause 

Key Facts

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Key Images

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Key References

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