Table 2 Comparison of optical coherence tomography angiography images between analysable RP and control groups.

From: Optical Coherence Tomography Angiography to Estimate Retinal Blood Flow in Eyes with Retinitis Pigmentosa

 

Analysable RP group

Control group

P

Eyes (patients), n

68 (68)

32 (32)

 

Parafoveal flow density (%)

Superficial layer

47.0 ± 4.9

55.1 ± 3.1

<0.001*

Deep layer

52.4 ± 5.5

60.4 ± 3.1

<0.001*

Blood flow area rate in the choriocapillaris layer (%)

61.1 ± 2.8

61.5 ± 1.4

0.34

FAZ area (mm2)

Superficial layer

0.342 ± 0.198a

0.280 ± 0.083

0.03*

Deep layer

0.429 ± 0.154b

0.356 ± 0.114

0.02*

  1. Data are presented as means ± standard deviations where applicable.Analysable RP group: RP patients with analysable quality of the optical coherence tomography images.RP = retinitis pigmentosa, FAZ = foveal avascular zone.In a and b, data were missing for two eyes.*P < 0.05, t-test.
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