Table 2.
The thickness, as measured with third-party software on OCT- scans from Cirrus HD and Heidelbarg Spectralis systems. Results are reported using means and SDs for the foveal center (top), the central 1-mm line crossing the fovea (middle), and all points of the 6-mm line (bottom). The difference between the instruments is given in μm, and the percentage and the p value are also for comparison of the instruments
| RPE_OScomplex | Cirrus HD | Heidelberg Spectralis | Difference | % Difference | p value |
|---|---|---|---|---|---|
| μm | μm | % | |||
| Foveal center, mean | 76.05 | 78.49 | 2.43 | 3.14 | 0.0136 |
| SD | 6.11 | 5.00 | 5.70 | ||
| 1-mm line, mean | 68.52 | 71.77 | 3.25 | 4.63 | < 0.0001 |
| SD | 3.86 | 3.78 | 3.11 | ||
| All points, mean | 61.59 | 64.91 | 3.32 | 5.29 | < 0.0001 |
| SD | 6.71 | 6.35 | 4.40 |