Agreement of results between frequency doubling technology (FDT) and Humphrey field analyser (HFA) with lowest probability (scotoma of HFA)
| HFA C30-2, highest probability (scotoma of HFA) | ||||||
|---|---|---|---|---|---|---|
| High tension glaucoma (HTG) | Normal tension glaucoma (NTG) | |||||
| Normal | Abnormal (p<1%) | Total | Normal | Abnormal (p<1%) | Total | |
| FDT screening C-20-1 | ||||||
| Normal | 201 | 37 | 238 | 227 | 51 | 278 |
| Mild to severe loss | 42 | 60 | 102 | 14 | 48 | 62 |
| Total | 243 | 97 | 340 | 241 | 99 | 340 |









