Table 4.
OCTA (AngioVue™) Parameters for Macular VD Segmentation of the Superficial Layer (SL)
| Segmentation SL | POAG | NTG | XFG | p-Valuea | Differences Between the Three Groupsb |
|---|---|---|---|---|---|
| SSI | 56.5 (41.0;74.0) | 55.0 (41.0;73.0) | 56.0 (42.0;67.0) | 0.98 | |
| wmVD (%) | 42.3 (30.7;51.8) | 41.4 (29.8;51.8) | 41.4 (34.8;44.5) | 0.51 | |
| fVD (%) | 32.3 (19.2;43.8) | 28.4 (21.2;45.6) | 30.7 (19.5;37.4) | 0.08 | |
| pmVD avg (%) | 45.9 (34.1;56.5) | 45.1 (37.7;54.1) | 44.3 (39.8;51.6) | 0.61 | |
| pmVD temp (%) | 45.6 (37.1;55.3) | 46.1 (37.8;56.1) | 45.6 (36.4;52.1) | 0.83 | |
| pmVD sup (%) | 46.7 (27.9;56.8) | 45.4 (35.3;56.4) | 45.1 (35.8;52.1) | 0.22 | |
| pmVD nasal (%) | 45.9 (36.8;55.9) | 45.8 (36.8;54.8) | 44.5 (37.2;54.9) | 0.77 | |
| pmVD inf (%) | 44.8 (33.3;59.4) | 44.7 (31.1;59.0) | 44.6(33.4;51.1) | 0.78 |
Abbreviations: POAG, primary open-angle glaucoma; XFG, exfoliation glaucoma; NTG, normal-tension glaucoma; SSI, signal strength index; wmVD, whole macular vessel density; fVD, foveal vessel density; pmVD, perimacular vessel density.
All values expressed as median and range (Min; Max). aKruskall–Wallis test; bpost-hoc analysis between the groups (Conover).