Effects of smoking on the retina of patients with dry age-related macular degeneration by optical coherence tomography angiography

Table 3 Statistical description of macular retina-related indices in the normal control and dry AMD groups

Variables	Control (n = 61)	Dry AMD (n = 73)	P value
FAZ (mm²), mean ± SD	0.33 ± 0.12	0.38 ± 0.17	0.07
FD (%), mean ± SD	50.28 ± 5.88	46.13 ± 8.71	< 0.01
SCP
whole (%), mean ± SD	46.93 ± 4.64	44.05 ± 4.71	< 0.01
foveal (%), mean ± SD	17.14 ± 6.10	14.11 ± 6.53	< 0.01
parafoveal (%), mean ± SD	49.20 ± 5.57	45.67 ± 5.38	< 0.01
DCP
whole (%), mean ± SD	46.63 ± 6.74	43.67 ± 6.50	0.01
foveal (%), mean ± SD	30.76 ± 7.64	28.15 ± 8.30	0.06
parafoveal (%), mean ± SD	53.02 ± 5.94	49.99 ± 6.56	< 0.01
full-layer FRT (mm), mean ± SD	255.03 ± 30.38	232.26 ± 38.79	< 0.01
inner FRT (mm), mean ± SD	68.20 ± 20.91	57.85 ± 17.10	< 0.01
outer FRT (mm), mean ± SD	186.46 ± 14.76	177.45 ± 32.47	0.02

Abbreviations: FAZ Foveal avascular zone, FD Foveal density in a 300 μm region around FAZ, SCP Superficial capillary plexuses, DCP Deep capillary plexuses, FRT Fovea retinal thickness

ISSN: 1471-2415