Table 1

Microvascular abnormalities within the central ETDRS grid (total, central 1 mm, inner ring, outer ring) and outside grid at CF and FA

Finding	Percentage of patients	Major locations	Further locations
Colour fundus photography (CF) (n=50)
Cotton wool spots	34	Outer inferior and nasal ETDRS grid subfields.	Inner inferior ETDRS grid subfield: F5, F3, F4 and F1.
Microaneurysms	6	Outer inferior ETDRS grid subfield.	Outer nasal and inferior ETDRS grid subfields: F5.
Dilated or tortuous vessels	12	Outer inferior and nasal ETDRS grid subfields.	All remaining ETDRS grid subfields (except cmm): F5, F4 and F1.
Retinal vessel sheating or narrowing	6	Outer inferior ETDRS grid subfield.	All remaining ETDRS grid subfields (except cmm): F5 and F4.
Haemorrhages	26	Outer inferior and nasal ETDRS grid subfields.	All remaining ETDRS grid subfields (except cmm): F5, F3, F4 and F1.
Fluoresceine angiography (FA) (n=48)
Capillary non-perfusion	19	Central and inner and outer inferior and inner and outer nasal ETDRS grid subfields.	All remaining ETDRS grid subfields: F5, F4 and F1.
Retinal vessel staining or leakage	25	All inner and outer inferior and nasal ETDRS grid subfields.	All remaining ETDRS grid subfields (except cmm); F5, F4 and F1.
Microaneurysms	15	Outer inferior and nasal ETDRS grid subfields	Inner inferior and nasal and remaining outer ETDRS grid subfields: F5, F3, F4 and F1.
Dilated or tortuous vessels	27	Inner and outer inferior and inner and outer nasal ETDRS grid subfields.	All remaining ETDRS grid subfields (except cmm): F5 and F1.
Retinal vessel narrowing	27	Inner and outer inferior and inner nasal ETDRS grid subfields.	All remaining ETDRS grid subfields (except cmm): F5, F3, F4 and F1.
Blockade due to haemorrhages	15	Outer nasal ETDRS grid subfield.	All remaining ETDRS grid subfields (except cmm): F5, F3 and F4.