Adaptive Optics (rtx1) High-Resolution Imaging of Photoreceptors and Retinal Arteries in Patients with Diabetic Retinopathy

Table 4

The mean cone density in 4 retinal quadrants at 2° eccentricities in both groups () and the DR group (mild NPDR, ; moderate NPDR, ).

Quadrants	Mean (±SD) cone density, cone/mm^2; DR group^a	Mean (±SD) cone density, cone/mm^2; Control group^b	value
T			<0.001^†
N			<0.001^†
S			<0.001^†
I			<0.001^†
4 quadrants			<0.001^†
	Mild NPDR group	Moderate NPDR group
4 quadrants			0.260^†

^†-test; ^‡Friedman ANOVA test; ^a value ^‡for all quadrants (in column) ; ^b value ^‡for all quadrants (in column) .  = value for all quadrants for whole group (in columns) . Abbreviations: SD: standard deviation; DR: diabetic retinopathy; NPDR: nonproliferative diabetic retinopathy; T: temporal; N: nasal; S: superior; I: inferior.