OCTA parameters | NMOSD vs POAG | NMO+ON vs G-A | ||
NMOSD value (SD) | POAG value (SD) | NMO+ON value (SD) | G-A value (SD) | |
Average pRNFL | 82.28 (19.89) | 74.54 (16.58) | 68.99 (14.27) | 62.40 (11.23) |
S pRNFL | 100.14 (28.82) | 93.41 (28.88) | 83.40 (24.21) | 74.26 (23.60) |
T pRNFL | 60.64 (20.26) | 61.28 (15.33) | 49.23 (13.43) | 51.90 (10.67) |
I pRNFL | 106.31 (32.87)*** | 78.71 (22.11) | 85.93 (26.20)*** | 63.42 (11.33) |
N pRNFL | 62.28 (11.90)* | 64.93 (11.24) | 57.78 (10.30) | 60.00 (9.36) |
Average GC-IPL | 70.26 (14.07) | 68.26 (11.12) | 60.79 (10.54) | 61.18 (8.39) |
S GC-IPL | 70.80 (14.40) | 71.52 (13.20) | 61.49 (11.43)* | 64.02 (11.33) |
TS GC-IPL | 70.26 (13.27) | 68.34 (13.06) | 62.11 (11.37) | 60.28 (10.44) |
TI GC-IPL | 71.35 (13.26)*** | 60.94 (9.72) | 63.10 (10.96)*** | 54.78 (5.37) |
I GC-IPL | 69.47 (13.48)* | 63.82 (9.87) | 60.64 (10.13) | 57.84 (6.89) |
NI GC-IPL | 69.41 (16.05) | 70.90 (12.80) | 58.35 (11.03)** | 63.6 (11.05) |
NS GC-IPL | 70.92 (16.21)** | 74.64 (14.00) | 59.95 (11.89)** | 67.56 (13.50) |
Whole VD | 14.47 (3.45)*** | 16.83 (1.51) | 13.66 (3.46)*** | 16.19 (1.57) |
Central VD | 5.79 (3.33)*** | 8.48 (2.91) | 5.08 (2.84)*** | 8.51 (3.10) |
Whole PD | 0.3504 (0.0870)*** | 0.4149 (0.0384) | 0.3295 (0.0887)*** | 0.3996 (0.0397) |
Central PD | 0.1262 (0.0768)*** | 0.1885 (0.0666) | 0.1094 (0.0647)*** | 0.1893 (0.0704) |
FAZ area | 0.2473 (0.1210)*** | 0.2956 (0.1282) | 0.2496 (0.1257)*** | 0.2718 (0.1090) |
OCTA values are presented as mean (SD). VD, PD and FAZ were measured in the superficial capillary plexus. pRNFL and GC-IPL thicknesses are expressed in μm, VD and PD in mm-1, FAZ area in mm2.
*p<0.05; **p<0.01; ***p<0.001.
GC-IPL, ganglion cell-inner plexiform layer; FAZ, foveal avascular zone; G-A, advanced glaucoma; I, inferior; N, nasal; NI, nasal-inferior; NMOSD, neuromyelitis optica spectrum disorder; NS, nasal-superior; OCTA, optical coherence tomography angiography; ON, optic neuritis; PD, perfusion density; POAG, primary open-angle glaucoma; pRNFL, peripapillary retinal nerve fibre layer; S, superior; T, temporal; TI, temporal-inferior; TS, temporal-superior; VD, vessel density.