Table 2.
Comparison of optic disc morphology of the NMTM and MTM groups
| Parameters | NMTM group | MTM group | P1 | P2 | ||
|---|---|---|---|---|---|---|
| (n = 50) | Total (n = 50) | MTM Stage 1 (n = 25) | MTM Stage 2 (n = 25) | |||
| Optic disc maximal diameter (mm) | 1.78 ± 0.38 | 1.89 ± 0.49 | 1.93 ± 0.55 | 1.86 ± 0.44 | 0.213† | 0.625† |
| Optic disc, minimal diameter (mm) | 1.40 ± 0.43 | 1.21 ± 0.49 | 1.42 ± 0.52 | 1.18 ± 0.47 | 0.05† | 0.681† |
| Optic disc tilt ratio | 1.34 ± 0.31 | 1.69 ± 0.48 | 1.67 ± 0.51 | 1.71 ± 0.45 | 0.000‡ | 0.479‡ |
| Optic disc rotation degree (°) | 21.83 ± 14.96 | 20.31 ± 13.66 | 20.66 ± 15.72 | 19.96 ± 11.56 | 0.967‡ | 0.641‡ |
| The area of optic disc (mm2) | 2.20 ± 0.86 | 1.98 ± 1.01 | 1.95 ± 0.95 | 2.02 ± 1.08 | 0.156‡ | 0.892‡ |
| DFD (mm) | 5.83 ± 0.65 | 6.16 ± 0.74 | 6.12 ± 0.76 | 6.21 ± 0.73 | 0.019† | 0.706† |
| PPA area (mm2) | 3.20 ± 2.12 | 7.27 ± 4.79 | 6.21 ± 3.11 | 8.32 ± 5.91 | 0.000‡ | 0.121‡ |
| PPA/ONH | 1.49 ± 0.96 | 4.10 ± 2.75 | 3.67 ± 2.15 | 4.54 ± 3.24 | 0.000‡ | 0.271‡ |
| PST (mm) | 385.70 ± 52.16 | 305.30 ± 61.34 | 314.44 ± 49.17 | 296.16 ± 71.21 | 0.000† | 0.297† |
Statistically significant P-values are shown in bold
DFD optic disc-fovea distance, PPA peripapillary atrophy, PPA/ONH peripapillary atrophy/optic nerve head, PST peripapillary scleral thick, P1 the comparison of the NMTM and MTM groups, P2: the comparison of the MTM Stage 1 and MTM Stage 2
†t-test
‡U test