Table 2

Quantitative comparison of the macular vessel density and the foveal avascular zone (FAZ) between patients and controls

Group 1Group 2Group 3Control groupP value*P value†P value‡P value§P value¶P value**
SCP
 Vessel density0.390±0.0190.387±0.0190.398±0.0200.406±0.0190.90.050.02††0.20.003††0.4
 FAZ (mm2)0.346±0.150.297±0.0960.340±0.1310.281±0.1170.60.90.30.60.90.4
DCP
 Vessel density0.406±0.0070.412±0.0110.407±0.0160.425±0.0240.60.90<0.001††0.70.04††0.001††
 FAZ (mm2)0.728±0.1920.706±0.2180.771±0.2400.550±0.1330.90.60.03††0.40.10.003††
  • Group 1, reticular pseudodrusen (RPD); Group 2, RPD+outer retinal atrophy; Group 3, drusen.

  • Each value is expressed as mean±SD.

  • All the P values refer to one-way analysis of variance with Bonferroni correction and multiple comparison between groups.

  • *Comparison between group 1 and group 2.

  • †Comparison between group 1 and group 3.

  • ‡Comparison between group 1 and control group.

  • §Comparison between group 2 and group 3.

  • ¶Comparison between group 2 and control group.

  • **Comparison between group 3 and control group.

  • ††Statistically significant value.

  • DCP, deep capillary plexus; SCP,  superficial capillary plexus.