Fig. 1

Macular thickness (a), macular volume (b), choroidal thickness (c), choriocapillary thickness (d), Sattler’s layer thickness (e), Haller’s layer thickness (f), full retinal perfusion (g), superficial retinal perfusion (h), deep retinal perfusion (i), choriocapillary perfusion (j), Sattler’s layer perfusion (k), as well as Haller’s layer perfusion (l) were compared between patients with systemic sclerosis and matched controls. Data are presented as box and whisker plots with median, lower as well as upper extreme. Significant differences were tested using Mann–Whitney-U test. P < 0.05 was considered statistically significant