Table 3.
Comparison of Choroidal Thickness (CT) Measurements Between Right and Left Eyes at Each of 12 Points
| CT, µm, Mean ± SD | Measure of Symmetry | ||||||
|---|---|---|---|---|---|---|---|
| Point | Right Eye | Left Eye | P- Value* | Interocular Correlation (r) (All P < 0.01) | ICC (All P < 0.001) | CV | |
| Nasal peripapillary area | Nasal 1 | 243.63 ± 64.83 | 239.64 ± 69.19 | 0.675 | 0.685 | 0.812 | 12.50 |
| Nasal 2 | 234.02 ± 64.23 | 220.59 ± 73.09 | 0.122 | 0.766 | 0.863 | 12.61 | |
| Nasal 3 | 200.09 ± 56.80 | 190.44 ± 65.50 | 0.290 | 0.665 | 0.794 | 15.62 | |
| Macular area | Nasal 4 | 167.69 ± 62.30 | 171.86 ± 61.48 | 0.681 | 0.577 | 0.732 | 19.87 |
| Nasal 5 | 227.17 ± 76.36 | 222.67 ± 68.25 | 0.533 | 0.850 | 0.916 | 10.82 | |
| Nasal 6 | 276.34 ± 81.37 | 261.59 ± 70.48 | 0.159 | 0.909 | 0.947 | 7.79 | |
| Subfovea | 299.92 ± 70.87 | 295.94 ± 68.32 | 0.569 | 0.842 | 0.914 | 7.59 | |
| Temporal 1 | 297.13 ± 66.54 | 294.91 ± 68.08 | 0.647 | 0.919 | 0.958 | 5.37 | |
| Temporal 2 | 292.97 ± 62.61 | 288.69 ± 73.54 | 0.505 | 0.873 | 0.926 | 7.19 | |
| Temporal 3 | 309.44 ± 63.69 | 304.03 ± 59.59 | 0.549 | 0.667 | 0.799 | 10.23 | |
| Peripheral area | Temporal 4 | 273.44 ± 73.58 | 294.00 ± 91.92 | 0.120 | 0.635 | 0.765 | 15.72 |
| Temporal 5 | 249.06 ± 79.56 | 254.84 ± 62.80 | 0.646 | 0.530 | 0.680 | 16.17 | |
*
P value for CT measurements in the right and left eyes using the paired t-test.
SD, standard deviation; r, Pearson's correlation coefficient; ICC, interclass correlation coefficient; CV, coefficient of variation.