Table 4.

Optical coherence tomography angiography (OCTA) measurements of enrolled eyes: differences between healthy eyes and dementia with Lewy Bodies (DLB) eyes

OCT-A measurements (mean ± SD or median and IQR)	Total (n = 66)	Control eyes (n = 36)	DLB eyes (n = 30)	p-value
SVD (%)
Whole Image Density (%)	43.5 (39.7; 45.2)	44.5 (42; 47.5)	41.9 (38.2; 44.6)	0.007†
Foveal Density (%)	16.0 ± 5.3	17.3 ± 6.2	14.5 ± 3.7	0.039*
Parafoveal Density (%)	46.5 (43.5; 49.2)	47.0 (44.7; 50.6)	46.0 (43.5; 47.9)	0.038†
DVD (%)
Whole Image Density (%)	49.3 ± 4.0	50.6 ± 4.2	47.8 ± 3.0	0.004*
Foveal Density (%)	32.6 ± 6.1	34.2 ± 7.3	30.5 ± 3.4	0.012*
Parafoveal Density (%)	52.0 ± 3.4	53.0 ± 3.3	50.8 ± 3.1	0.007*
FAZ area (mm2)	0.28 ± 0.8	0.26 ± 0.10	0.30 ± 0.05	0.047*
Flow area (mm2)
Outer Retina	0.61 (0.42; 0.89)	0.60 (0.37; 0.82)	0.78 (0.44; 0.93)	0.121†
Choriocapillaris	2.16 (2.08; 2.22)	2.13 (2.05; 2.17)	2.18 (2.15; 2.23)	0.007†

*Unpaired t-test, †Mann-Whitney U test

P-values < 0.05 are given in bold-italic entries

SVD: superficial vessel density; DVD: deep vessel density; FAZ: foveal avascular zone