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.
Figure 1Fundus examination in a patient with sudden painless vision loss in the right eye.
QuestionWhat 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 …
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