Table 1.

Vessel density (ratio) of the superficial and deep retinal layer in 3 different sessions

	1st session	2nd session	3rd session	IQI		P value	ICC
SRL	0.408 ± 0.012	0.410 ± 0.011	0.397 ± 0.020	72	1st vs 2nd session	0.4	0.807
					1st vs 3rd session	0.04	0.338
DRLa	0.394 ± 0.022	0.383 ± 0.014	0.447 ± 0.028	73.18	1st vs 2nd session	0.064	0.525
					1st vs 3rd session	<0.001	0.063
DRLb	0.132 ± 0.007	0.128 ± 0.008	0.148 ± 0.014	52.29	1st vs 2nd session	0.071	0.660
					1st vs 3rd session	<0.001	0.368

SRL superficial retinal layer, IQI image quality index, ICC intraclass correlation coefficient

^a DRL deep retinal layer without artefact removal

^b DRL deep retinal layer with artefact removal