Variable | All subjects: mean and standard deviation | Matched by cup-to-disc area ratio | Matched by mean RNFL | |||
---|---|---|---|---|---|---|
Non-glaucomatous optic nerve cupping | Glaucomatous optic nerve cupping | Non-glaucomatous optic nerve cupping | Glaucomatous optic nerve cupping | Non-glaucomatous optic nerve cupping | Glaucomatous optic nerve cupping | |
Disc area (mm2) | 2.5 ± 0.3 | 2.4 ± 0.4 | 2.4 | 2.2 | 2.5 | 2.44 |
Cup area (mm2) | 1.4 ± 0.4 | 1.7 ± 0.6 | 1.5 | 1.5 | 1.4 | 1.8 |
Rim area (mm2) | 1.1 ± 0.6 | 0.69 ± 0.3 | 0.9 | 0.78 | 1.1* | 0.65 |
Cup-to-disc area ratio | 0.56 ± 0.18 | 0.70 ± 0.14 | 0.62 | 0.64 | 0.56 | 0.72 |
Cup-to-disc horizontal ratio | 0.76 ± 0.16 | 0.85 ± 0.10 | 0.83 | 0.82 | 0.75 | 0.87 |
Cup-to-disc vertical ratio | 0.70 ± 0.12 | 0.81 ± 0.08 | 0.76 | 0.78 | 0.71 | 0.82 |
Total | n = 11 | n = 12 | n = 8 | n = 8 | n = 11 | n = 11 |