Preoperative visual function and fundus findings versus RNFL thickness in various quadrants (n=58 eyes)
| Inferior RNFL, µm | Superior RNFL, µm | Nasal RNFL, µm | Temporal RNFL, µm | Average RNFL, µm | P value | |
| Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | ||
| Disc pallor | ||||||
| Absent (n=26) | 139.4 (21.4) | 132.9 (19.1) | 77.0 (18.1) | 69.4 (14.8) | 104.8 (15.3) | <0.001 |
| Present (n=32) | 101.8 (32.3) | 100.6 (34.1) | 55.0 (21.3) | 47.2 (19.5) | 76.2 (25.3) | |
| Visual acuity | ||||||
| VA=6/6 (n=26) | 129.1 (23.8) | 127.3 (21.7) | 74.5 (20.7) | 64.9 (14.7) | 99.1 (18.6) | 0.04 |
| VA <6/6 (n=32) | 110.2 (37.9) | 105.2 (36.5) | 57.1 (21.4) | 50.8 (22.7) | 80.8 (27.8) | |
| VFD | ||||||
| Absent (n=16) | 141.3 (19.3) | 134.8 (20.6) | 80.3 (17.8) | 71.7 (11.4) | 107.2 (15.2) | 0.004 |
| Present (n=42) | 110.0 (33.9) | 107.5 (33.1) | 59.0 (21.6) | 51.6 (20.7) | 82.1 (25.5) | |
logMAR, logarithmic minimum angle of resolution; RNFL, retinal nerve fibre layer; VA, visual acuity; VFD, visual field defect.