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A 30-year-old male presents to ED with 3-day history of red and painful left eye associated with blurred vision.

Red painful eye

1. List two abnormalities in the above image. 2 marks

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2. What is the diagnosis and most likely underlying aetiology? 2 marks

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3. Complete the table below with respect to differential diagnosis for acute atraumatic monocular visual disturbance. 8 marks

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