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A young adult male was referred by his optometrist for suspected papilloedema. He complained of a 4-week history of intermittent headache and a 2-day history of blurred vision in his right eye. There were no postural variation in symptom intensity, pulsatile tinnitus or additional neurological symptoms. A recent CT scan of the head (arranged by his general practitioner) had shown no intracranial space-occupying lesions. On examination, Snellen visual acuities were 20/30 on the right and 20/20 on the left. There was no relative afferent pupillary defect, and examinations of colour vision, cranial nerve and anterior ocular segments were normal. Funduscopy showed bilateral optic nerve head …
Contributors Both authors contributed to clinical care of the patient, wrote and reviewed the manuscript and approved its final version.
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed. This paper was reviewed by Mark Lawden, Leicester, UK.