<qa>  What is IRMA present in at least two of photographic fields 4 to 7?- Severe NPDR - Cotton wool spots, venous beading, and IRMA definitely present in at least two of photographic fields 4 to 7 ; or two of the three preceding features present in at least two of fields 4 to 7 and hemorrhagesmicroaneurysm present in fields 4 to 7 standard photograph 2A in at least one of them ; or IRMA present in each of fields 4 to 7 and standard photography 8A in at least two of them ; and criteria not met for more severe retinopathy 