Table 3.
Signal Score and Percent Parafoveal Vessel Density Change per Filter of OCTA
| Triton OCTA | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Cirrus OCTA ODλ=840nm | SSMean± SD | Parafoveal VD (%) | P Value* | △parafoveal VD 95% CI (%) | ODλ=1050nm | SSIMean± SD | Parafoveal VD (%) | P Value* | △parafoveal VD 95% CI (%) |
| 0.00 | 9.32 ± 0.84 | 100.00 | – | – | 0.00 | 63.6 ± 6.8 | 100.00 | – | – |
| 0.10 | 9.23 ± 1.07 | 98.8 ± 12.3 | 0.644 | 1.2 (−4.2 to 6.7) | 0.15 | 53.2 ± 5.4 | 99.1 ± 2.8 | 0.151 | 0.9 (−0.3 to 2.1) |
| 0.22 | 8.55 ± 1.37 | 93.8 ± 12.1 | 0.026 | 6.2 (0.8 – 11.5) | 0.30 | 42.9 ± 5.1 | 98.3 ± 2.4 | 0.003 | 1.7 (0.7 – 2.8) |
| 0.28 | 8.23 ± 1.52 | 92.0 ± 10.8 | 0.002 | 8.0 (3.2 – 12.8) | 0.37 | 36.2 ± 4.4 | 98.2 ± 2.5 | 0.002 | 1.8 (0.7 – 2.9) |
| 0.38 | 7.68 ± 1.52 | 88.3 ± 11.9 | < 0.001 | 11.7 (6.4 – 16.9) | 0.51 | 28.0 ± 4.2 | 99.5 ± 2.1 | 0.309 | 0.5 (−0.5 to 1.4) |
| 0.48 | 6.59 ± 1. 53 | 78.2 ± 17.1 | < 0.001 | 21.8 (14.2 – 29.4) | – | – | – | – | – |
OD, optical density; SS, signal strength; SSI, signal strength intensity; SD, standard deviation; VD, vessel density; CI, confidence interval.
*
LSD, P value of repeated-measurements ANOVA. P is significant at 0.05.