Table 2.
QAF Intensities ± Standard Deviation for a Subset of Segments Using the Original QAF8, QAF97, and the Freehand Tool in an Example of Geographic Atrophy (see Fig. 5)
| Segment | Baseline QAF Value (a.u.) | Follow-Up (9 Months) QAF Value (a.u.) |
|---|---|---|
| QAF 8 | 160.6 ± 71.2 | 224.6 ± 38.2 |
| Orange 1 | 254.2 ± 51.7 | 248.8 ± 53.8 |
| Orange 2 | 92.7 ± 68.0 | 86.2 ± 58.9 |
| Orange 3 | 93.2 ± 62.6 | 80.6 ± 53.4 |
| Orange 4 | 173.5 ± 62.0 | 154.8 ± 59.4 |
| Yellow 1 | 200.0 ± 76.6 | 194.2 ± 86.6 |
| Yellow 2 | 218.1 ± 60.1 | 216.8 ± 75.4 |
| Yellow 3 | 107.1 ± 69.4 | 95.3 ± 54.1 |
| Yellow 4 | 127.3 ± 77.8 | 113.3 ± 74.4 |
| Yellow 5 | 136.0 ± 65.0 | 119.5 ± 66.3 |
| Yellow 6 | 158.9 ± 73.1 | 127.3 ± 71.6 |
| Yellow 7 | 165.2 ± 36.7 | 154.4 ± 38.8 |
| Freehand tool | 163.8 ± 39.6 | 147.0 ± 51.1 |
a.u., arbitrary units.