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Clinical introduction
A 68-year-old man awoke with severe vision loss in the right eye. Three days later, he sought medical attention in the ED. Vision was no light perception in the right eye and 6/6 in the left eye with right brisk relative afferent pupillary defect. Fundus examination is shown in figure 1. Inflammatory markers were ordered and were normal.
Question
What is the diagnosis?
Haemorrhage related to age-related macular degeneration
Central retinal artery occlusion
Retinal detachment
Proliferative diabetic retinopathy
Answer:B
(B) Central retinal artery occlusion (CRAO). While the centre of the macula, the fovea, has a bright red appearance, this is not a haemorrhage (answers A and D). Ischaemic retina …
Footnotes
Contributors All authors contributed equally to data gathering, manuscript writing, preparation and final approval.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Provenance and peer review Not commissioned; internally peer reviewed.
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