Fig. 5

Regional relationships between pVD and corresponding VFMS in Group 3 and Group 4. Scatter plots of the regional peripapillary vessel density (pVD) and corresponding visual field mean sensitivity (VFMS) in Group 3 and Group 4. The pVD-VFMS associations were significant in all the sectors in Group 4 (p < 0.05). While in Group 3, there were significant correlations only in the TI, NS and NI sectors. A The pVD-VFMS correlation in TS region was only significant in Group 4 (p=0.003). B The pVD-VFMS correlations in TI region were significant in both Group 3(p=0.025) and Group 4 (p<0.001). C The pVD-VFMS association in ST region was statistically significant in Group 4(p<0.001), while not significant in Group 3. D The pVD-VFMS association in IT region was statistically significant only in Group 4(p=0.011). E The pVD-VFMS correlation in SN region was only significant in Group 4 (p<0.001). F The pVD-VFMS association in IN region was statistically significant only in Group 4 (p=0.020). G Correlations between pVD and VFMS in NS region were statistically significant in both Group 3 (p=0.049) and Group 4 (p=0.037). H The pVD-VFMS correlations in NI region were significant in both Group 3(p=0.030) and Group 4(p=0.040).TS, temporal superior; TI, temporal inferior; ST, superior temporal; IT, inferior temporal; SN, superior nasal; IN, inferior nasal; NS, nasal superior; NI, nasal inferior. p < 0.05, the difference was statistically significant