Global SLO topographical parameters in normal (N), ocular hypertensive (OHT), and early glaucoma (POAG) subjects
| Normal (n=22) | OHT (n=21) | POAG (n=50) | p Value | |||
|---|---|---|---|---|---|---|
| Mean (SD) | Mean (SD) | Mean (SD) | N/POAG | OHT/POAG | N/OHT | |
| Student's t test; NS = not significant. | ||||||
| Average slope (degrees) | 30.89 (6.76) | 36.01 (7.11) | 39.85 (5.07) | <10−8 | <0.01 | <0.05 |
| Cup-disc ratio | 0.308 (0.13) | 0.403 (0.14) | 0.487 (0.12) | <0.0001 | <0.05 | <0.05 |
| Neuroretinal rim area (mm2) | 1.414 (0.317) | 1.255 (0.338) | 1.058 (0.33) | <0.0001 | <0.05 | NS |
| Effective area (mm2) | 0.666 (0.340) | 0.850 (0.321) | 1.013 (0.34) | <0.0001 | NS | NS |
| Volume above (mm3) | 0.288 (0.069) | 0.253 (0.250) | 0.200 (0.08) | <0.0001 | NS | NS |
| Volume below (mm3) | −0.101 (0.330) | −0.253 (−0.256) | −0.325 (0.18) | <0.0001 | NS | NS |
| Average depth (mm) | −2.174 (1.67) | −3.082 (1.72) | −3.585 (1.31) | <0.0001 | NS | NS |
| Maximum depth (mm) | −4.898 (3.40) | −6.892 (4.36) | −8.256 (3.10) | <0.0001 | NS | NS |
| Half depth area (mm2) | 0.165 (0.149) | 0.216 (0.191) | 0.303 (0.29) | <0.05 | NS | NS |
| Half depth volume (mm3) | −0.021 (0.031) | −0.041 (0.044) | −0.052 (0.05) | <0.05 | NS | NS |