Changes in optic nerve head topography of laser treated eyes 2 weeks and 4 weeks after retrobulbar anaesthetic injection
| Variables | Baseline (n = 49) | 2nd week (n = 42) | 4th week (n = 37) |
|---|---|---|---|
| Statistical significance was set as p<0.05. *p<0.05. | |||
| RNFL, retinal nerve fibre layer. | |||
| Disc area (mm2) | 2.13 (0.05) | 2.14 (0.07) | 2.13 (0.06) |
| Cup area (mm2) | 0.58 (0.35) | 0.55 (0.38)* | 0.58 (0.36) |
| Rim area (mm2) | 1.55 (0.34) | 1.59 (0.35)* | 1.54 (0.34) |
| Cup volume (mm3) | 0.14 (0.16) | 0.13 (0.17) | 0.14 (0.17) |
| Rim volume (mm3) | 0.47 (0.19) | 0.48 (0.20) | 0.47 (0.20) |
| Cup /disc area ratio | 0.27 (0.12) | 0.26 (0.14) | 0.27 (0.13) |
| Linear cup/disc ratio | 0.31 (0.13) | 0.31 (0.15) | 0.30 (0.13) |
| Mean cup depth (mm) | 0.29 (0.13) | 0.28 (0.14) | 0.29 (0.14) |
| Maximum cup depth (mm) | 0.78 (0.31) | 0.78 (0.32) | 0.79 (0.31) |
| Cup shape measure | −0.17 (0.09) | −0.20 (0.10)* | −0.17 (0.09) |
| Height variation contour (mm) | 0.56 (0.16) | 0.57 (0.17) | 0.57 (0.16) |
| Mean RNFL thickness (mm) | 0.32 (0.11) | 0.32 (0.13) | 0.31 (0.12) |
| RNFL cross sectional area (mm2) | 1.37 (0.41) | 1.37 (0.39) | 1.36 (0.40) |