Table 3.
Diameter and length of retinal blood vessels in indirect traumatic optic neuropathy (ITON) patients before and 3 months after endoscopic trans-ethmosphenoid optic canal decompression (ETOCD) and the conservative treatment
| Variables | Groups | Time points | ||
|---|---|---|---|---|
| Pre-treatment | Post-treatment | P | ||
| Diameter of arteries | ETOCD-Improved VA | 11.86 ± 1.29 | 11.01 ± 1.45 | 0.054 |
| ETOCD-No improved VA | 12.44 ± 2.68 | 10.75 ± 1.25 | 0.112 | |
| P† | 0.245 | 0.293 | ||
| ETOCD-Total | 12.00 ± 1.45 | 10.95 ± 2.40 | 0.100 | |
| Conservative treatment | 12.04 ± 2.14 | 10.89 ± 2.59 | 0.100 | |
| P# | 0.847 | 0.798 | ||
| Diameter of veins | ETOCD-Improved VA | 16.12 ± 2.31 | 15.54 ± 2.05 | 0.072 |
| ETOCD-No improved VA | 15.98 ± 2.31 | 13.36 ± 1.78 | 0.212 | |
| P† | 0.729 | 0.086 | ||
| ETOCD-Total | 16.09 ± 2.30 | 15.02 ± 2.70 | 0.112 | |
| Conservative treatment | 16.89 ± 2.59 | 15.48 ± 1.79 | 0.278 | |
| P# | 0.347 | 0.654 | ||
| Length of arteries | ETOCD-Improved VA | 2373.89 ± 1153.14 | 2705.67 ± 658.829 | 0.031 |
| ETOCD-No improved VA | 2599.75 ± 1422.22 | 2262.50 ± 859.50 | 0.050 | |
| P† | 0.591 | 0.472 | ||
| ETOCD-Total | 2428.10 ± 1248.29 | 2599.31 ± 801.26 | 0.102 | |
| Conservative treatment | 2523.14 ± 1312.25 | 2565.66 ± 924.02 | 0.854 | |
| P# | 0.512 | 0.821 | ||
| Length of veins | ETOCD-Improved VA | 2562.22 ± 730.41 | 2810.33 ± 733.80 | 0.334 |
| ETOCD-No improved VA | 2398.00 ± 736.23 | 2607.00 ± 556.34 | 0.219 | |
| P† | 0.051 | 0.776 | ||
| ETOCD-Total | 2522.807 ± 756.54 | 2761.53 ± 568.80 | 0.147 | |
| Conservative treatment | 2489.26 ± 893.36 | 2619.26 ± 783.25 | 0.358 | |
| P# | 0.379 | 0.569 | ||
Data are the means plus/minus standard deviations. ETOCD, endoscopic trans-ethmosphenoid optic canal decompression; VA, visual acuity; P, P value between values of pre-treatment and post-treatment; P†, P value between improved VA group and no improved VA group after ETOCD; P#, P value between two groups treated with ETOCD and the conservation treatment