TABLE 4.
MACULAR THICKNESS REPRODUCIBILITY RESULTS
| PARAMETER* | SD-OCT† VARIANCE | TD-OCT‡ VARIANCE | VARIANCE FUNCTION LB | VARIANCE FUNCTION§ | VARIANCE FUNCTION UB |
|---|---|---|---|---|---|
| Weighted mean | 1.77 | 2.11 | 0.91 | 1.19 | 1.55 |
| Outer temporal | 2.94 | 4.22 | 1.10 | 1.44 | 1.87 |
| Outer superior | 2.33 | 5.68 | 1.87 | 2.44 | 3.18 |
| Outer nasal | 3.00 | 5.21 | 1.33 | 1.74 | 2.27 |
| Outer inferior | 3.76 | 5.28 | 1.08 | 1.40 | 1.83 |
| Inner temporal | 8.51 | 6.20 | 0.56 | 0.73 | 0.95 |
| Inner superior | 4.65 | 5.76 | 0.95 | 1.24 | 1.62 |
| Inner nasal | 7.26 | 8.93 | 0.94 | 1.23 | 1.61 |
| Inner inferior | 3.80 | 5.84 | 1.18 | 1.54 | 1.01 |
| Center | 36.53 | 32.84 | 0.69 | 0.90 | 1.17 |
| Weighted RNFL | 1.54 | 2.34 | 1.16 | 1.52 | 1.98 |
LB, lower bound (of variance function confidence interval); RNFL, retinal nerve fiber layer; SD-OCT, spectral domain ocular coherence tomography; TD-OCT, time domain ocular coherence tomography; UB, upper bound (of variance function confidence interval).
*
Weighted mean and sectoral parameters are total retinal thickness measurements. Weighted RNFL is the weighted mean RNFL thickness measurement. Weighted means are calculated across the entire circle shown in Figure 4. Variance components are in square root terms.
†
Cirrus OCT.
‡
Stratus OCT.
§
TD-OCT variance/SD-OCT variance.