Fig. 2
From: Evaluating diurnal variations in retinal perfusion using optical coherence tomography angiography
Boxplot analysis of the retinal sublayer perfusion and subfoveal choroidal thickness in healthy adults at 7 a.m. and 4 p.m. The perfusion in SCP (a) and DCP (b), as well as the full retinal perfusion (c) didn’t show statistically significant changes between 7 a.m. and 4 p.m., while SFCT significantly decreased. Test values of p < 0.05 were considered statistically significant