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This is the fluorescein angiography of a 66-year-old man who suffered a sudden onset left visual loss three weeks ago. 
 

How would you assess if he is at risk of neovascularization?

Answer
The visual acuity. Patient with poor visual acuity is more likely than
those with good visual acuity to develop neovascularization.
Presence of relative afferent pupillary defect. This suggests widespread
retina damage.
Fluorescein angiogram. Presence of extensive capillary non-perfusion.
ERG. Reduced "b" wave amplitude.

 

Is there ischaemia in this patient's fluroescein angiogram?

Answer
There are areas of hypofluorescence which correspond to retinal
haemorrhages (ie. masking). One can not tell if there is underlying
capillary non-perfusion. Ideally, the angiogram should be repeated 
when the blood clears.

 
 

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