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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)

AI

FD(%)

Control

0.35 ± 0.13

2.35 ± 0.48

1.14 ± 0.03

49.58 ± 3.38

Preop

0.06 (0.04,0.11)

1.11 ± 0.34

1.20 ± 0.07

48.15 ± 4.30

1 mo post-op

0.07 (0.04,0.09)

1.09 ± 0.34

1.18 ± 0.07

46.64 ± 5.20

3 mo post-op

0.07 (0.05,0.11)

1.16 ± 0.34

1.20 ± 0.07

48.31 ± 4.29

6 mo post-op

0.08 (0.04,0.13)

1.23 ± 0.41

1.22 ± 0.09

48.15 ± 4.13

F/K-W

35.10

33.86

3.39

1.13

P

< 0.0001

< 0.0001

< 0.05

0.35

Control vs. Pre-op

< 0.0001

< 0.0001

> 0.05

0.84

Pre-op vs. 6 mo post-op

0.36

0.83

> 0.05

> 0.99

Control vs. 6 mo post-op

< 0.0001

< 0.0001

< 0.05

0.87

  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