Table 1 The mean values of capillary vessel length density and their coefficient of variation among individuals for each instrument by 4 different locations of a ring between two circles (1.5 and 2.25 mm) centered on the disc.
Location | Superior | Nasal | Inferior | Temporal | |
|---|---|---|---|---|---|
instrument | |||||
Spectralis | mean ± SD (mm−1) | 20.1 ± 3.4 | 25.2 ± 3.4 | 19.4 ± 3.1 | 23.8 ± 4.0 |
CV (%) | 17 | 14 | 16 | 17 | |
Optovue | mean ± SD (mm−1) | 18.8 ± 1.9 | 20.9 ± 2.3 | 18.7 ± 2.1 | 22.8 ± 2.3 |
CV (%) | 10 | 11 | 11 | 10 | |
Triton | mean ± SD (mm−1) | 21.9 ± 2.6 | 22.8 ± 2.9 | 21.9 ± 2.0 | 24.3 ± 2.7 |
CV (%) | 12 | 13 | 9 | 11 | |
Cirrus | mean ± SD (mm−1) | 16.9 ± 1.9 | 20.7 ± 2.4 | 16.8 ± 2.2 | 19.8 ± 4.4 |
CV (%) | 11 | 12 | 13 | 22 | |
