Table 5.
Measured residual layer thickness and functional loss in corresponding field sectors
| Post-CPM1 residual layer (μm) | Post-CPM1 visual field loss (dB) | Post-CPM2 residual layer (μm) | Post-CPM2 visual field loss (dB) | p1 | p2 | |
|---|---|---|---|---|---|---|
| Spectralis OCT | ||||||
| Global | 44.8 (41.4 to 48.1) | −27.9 (−31.3 to −24.5) | 48.7 (46.6 to 50.9) | −20.0 (−22.1 to −17.8) | 0.15 | <0.001 |
| Superior quadrant | 50.8 (46.5 to 55.1) | −29.7 (−34.0 to −25.4) | 56.0 (52.9 to 59.2) | −20.4 (−23.5 to −17.3) | 0.09 | <0.001 |
| Inferior quadrant | 50.8 (48.0 to 53.6) | −28.0 (−30.8 to −25.2) | 54.2 (51.5 to 56.9) | −22.4 (−25.2 to −19.7) | 0.14 | <0.001 |
| Temporal quadrant | 37.0 (34.8 to 39.2) | −28.6 (−30.8 to −26.5) | 38.4 (36.5 to 40.4) | −22.3 (−24.3 to −20.3) | 0.42 | <0.001 |
| Nasal quadrant | 37.2 (31.6 to 42.9) | −27.2 (−32.9 to −21.6) | 38.3 (33.0 to 43.6) | −25.9 (−31.3 to −20.6) | 0.79 | 0.37 |
| RTVue OCT | ||||||
| Global | 70.0 (61.6 to 78.4) | −22.8 (−31.2 to −14.4) | 71.3 (68.5 to 74.1) | −14.1 (−16.9 to −11.4) | 0.73 | <0.001 |
| Superior quadrant | 80.5 (75.5 to 85.5) | −24.7 (−29.6 to −19.7) | 88.8 (83.6 to 93.9) | −12.9 (−18.1 to −7.8) | 0.16 | <0.001 |
| Inferior quadrant | 77.4 (72.2 to 82.7) | −26.5 (−31.8 to −21.3) | 76.8 (73.4 to 80.2) | −21.0 (−24.4 to −17.6) | 0.85 | 0.01 |
| Temporal quadrant | 60.9 (55.9 to 65.8) | −15.0 (−20.0 to −10.1) | 58.4 (53.5 to 63.4) | −16.6 (−21.5 to −11.6) | 0.50 | 0.39 |
| Nasal quadrant | 60.6 (57.4 to 63.7) | −10.9 (−14.0 to −7.7) | 60.7 (57.6 to 63.8) | −10.2 (−13.3 to −7.1) | 0.96 | 0.70 |
Values are expressed as mean±SD; values in parentheses indicate lower and upper 95% CIs.
p1 indicates significance level of the difference between postchange point residual layer thickness from CPM1 and CPM2.
p2 indicates significance level of the difference between postchange point visual residual losses from CPM1 and CPM2.
CPM1, change point model 1; CPM2, change point model 2; OCT, optical coherence tomography.