Fig. 2

A comparison among the three groups was conducted, including the macular retinal thickness (a full foveal, b inner foveal, c outer foveal, d parafoveal), foveal avascular zone (FAZ) area, and the macular and peripapillary retinal vessel densities. As the retinal vessel densities (RVD) in superficial foveal (e) and parafoveal (f), the deep foveal (g) and deep parafoveal (h). By contrast, the mean deep foveal RVD, the full, inner and outer foveal and the parafoveal retinal thickness were significantly lower in group I compared with the controls, (P = 0.0329, 0.0153, 0.0311 0.0352, 0.0215)