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False negatives of central geographic atrophy detection categorized by involvement of the center point and center subfield.
| Area category | Whole test set | False negatives | |
|---|---|---|---|
| Definite, center point < I-2 | 1,297 | 279 | 21.5% |
| Questionable center point, but center subfield area < ½ disc area | 158 | 50 | 31.6% |
