His BCVA is 3/60 OD and CF 80 cm OS.
Fundus photos show extensive retinal hemorrhage occupying the inferior fundus of both eyes, sheathed vessels in the same area (click on the image to enlarge), hard exudates in the inferior maculae, disc pallor more in the right with blurring of its edges.
What do the pictures show? Why the inferior fundus bilateral? What is the likely cause?