Table 4

Effect of signal strength index on the repeatability of vessel density measurements of the peripapillary and macular regions

Vessel densityCoefficient (SE)95% CIp Value
Whole enface disc0.21 (0.03)0.15 to 0.26<0.001
Peripapillary0.23 (0.03)0.17 to 0.29<0.001
 Nasal0.25 (0.04)0.17 to 0.32<0.001
 Inferonasal0.19 (0.05)0.08 to 0.290.001
 Inferotemporal0.20 (0.06)0.07 to 0.320.002
 Superotemporal0.15 (0.05)0.05 to 0.250.004
 Superonasal0.21 (0.06)0.09 to 0.330.001
 Temporal0.35 (0.05)0.26 to 0.45<0.001
Whole enface macula0.28 (0.04)0.20 to 0.35<0.001
Parafovea0.31 (0.04)0.23 to 0.39<0.001
 Temporal0.30 (0.05)0.20 to 0.39<0.001
 Superior0.29 (0.05)0.20 to 0.39<0.001
 Nasal0.38 (0.05)0.29 to 0.47<0.001
 Inferior0.36 (0.05)0.26 to 0.46<0.001