Retinal Photoreceptors and Microvascular Changes in Prediabetes Measured with Adaptive Optics (rtx1™): A Case-Control Study

Table 4

Characteristic of retinal artery and venule parameters in the prediabetic and control groups ( and 22).

Parameters	m ± SD; Prediabetic	m ± SD; Control	value
LD artery (μm)	94.3 ± 10.9	105.6 ± 14.6	0.022^†
WLR artery	0.29 ± 0.05	0.22 ± 0.04	<0.001^†
WCSA artery	4519 ± 905	4284 ± 982	0.490^†
LD venule (μm)	136.9 ± 17.6	146.3 ± 16.6	0.136^†
WLR venule	0.097 ± 0.016	0.099 ± 0.020	0.848^‡
WCSA venule	2956 ± 487	3500 ± 894	0.055^†

^†t-test. ^‡Mann–Whitney U test. m: mean; SD: standard deviation; DM: cone density; LD: lumen diameter; WLR: wall-to-lumen ratio; WCSA: wall cross-sectional area.