Subject iPad responses tabulated by HVF sensitivity threshold values at the corresponding retinal loci
| HVF | Normal | Mild blur | Severe blur/missing | Total |
|---|---|---|---|---|
| OD (count, row %) | ||||
| 0–10 db | 49 (36.0) | 30 (21.8) | 58 (42.6) | 137 (100) |
| 11–20 db | 49 (69.1) | 17 (23.3) | 7 (19.1) | 73 (100) |
| 21–30 db | 317 (85.9) | 43 (11.6) | 10 (2.7) | 370 (100) |
| >30 db | 67 (95.7) | 1 (1.4) | 2 (2.8) | 70 (100) |
| Total | 482 (74.3) | 91 (14) | 77 (11.8) | 650(100) |
| OS (count, row %) | ||||
| 0–10 db | 46 (39.3) | 18 (15.4) | 53 (45.3) | 117 (100) |
| 11–20 db | 29 (65.1) | 1 (2.4) | 12 (28.6) | 42 (100) |
| 21–30 db | 366 (89.7) | 33 (8.1) | 9 (2.2) | 408 (100) |
| >30 db | 83 (100) | 0 (0.0) | 0 (0.0) | 83 (100) |
| Total | 524 (80.6) | 52 (8.0) | 74 (11.4) | 650 (100) |
| OU (count, row %) | ||||
| 1–10 db | 35 (50) | 4 (5.8) | 31 (45.0) | 70 (100) |
| 11–20 db | 31 (77.5) | 1 (2.5) | 8 (20.0) | 40 (100) |
| 21–30 db | 377 (94.7) | 19 (4.8) | 2 (0.5) | 398 (100) |
| >30 db | 161 (98.2) | 3 (1.8) | 0 (0.0) | 164 (100) |
| Total | 602 (89.8) | 27 (4.0) | 41 (6.1) | 672 (100) |
dB, decibels; HVF, Humphrey visual fields; OD, right eye; OS, left eye, OU, both eyes.