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Table 1 FAZ measurements

From: A study analyzing macular microvasculature features after vitrectomy using OCT angiography in patients with idiopathic macular epiretinal membrane

 FAZ area (mm2)PERIM (mm)AIFD(%)
Control0.35 ± 0.132.35 ± 0.481.14 ± 0.0349.58 ± 3.38
Preop0.06 (0.04,0.11)1.11 ± 0.341.20 ± 0.0748.15 ± 4.30
1 mo post-op0.07 (0.04,0.09)1.09 ± 0.341.18 ± 0.0746.64 ± 5.20
3 mo post-op0.07 (0.05,0.11)1.16 ± 0.341.20 ± 0.0748.31 ± 4.29
6 mo post-op0.08 (0.04,0.13)1.23 ± 0.411.22 ± 0.0948.15 ± 4.13
F/K-W35.1033.863.391.13
P< 0.0001< 0.0001< 0.050.35
Control vs. Pre-op< 0.0001< 0.0001> 0.050.84
Pre-op vs. 6 mo post-op0.360.83> 0.05> 0.99
Control vs. 6 mo post-op< 0.0001< 0.0001< 0.050.87
  1. FAZ: fovea avascular zone, PERIM FAZ perimeter, AI A-circularity index, FD foveal vessel density in a 300 μm wide region around FAZ, Pre-op preoperative, 1 mo post-op 1 month postoperative, 3 mo post-op 3 months postoperative, 6 mo post-op 6 months postoperative