Table 3. Optic nerve head parameters.
Parameters | mean ±SD | Parameters | mean ±SD |
Vertical disc width (mm) | 1.86±0.23 | Rim-disc ratio of section 1 | 0.07±0.05 |
Horizontal disc width (mm) | 1.66±0.28 | Rim-disc ratio of section 2 | 0.11±0.06 |
Vertical cup-disc ratio | 0.82±0.08 | Rim-disc ratio of section 3 | 0.17±0.06 |
Horizontal cup-disc ratio | 0.74±0.08 | Rim-disc ratio of section 4 | 0.20±0.08 |
Minimum rim-disc ratio | 0.02±0.02 | Rim-disc ratio of section 5 | 0.15±0.08 |
Angle of minimum rim-disc ratio (degree) | 187.4±127.0 | Rim-disc ratio of section 6 | 0.06±0.05 |
Superior minimum rim-disc ratio | 0.08±0.06 | Cup volume (mm3) | 0.31±0.22 |
Angle of superior minimum rim-disc ratio (degree) | 72.9±18.7 | Disc volume (mm3) | 0.93±0.43 |
Inferior minimum rim-disc ratio | 0.04±0.05 | Rim volume (mm3) | 0.17±0.10 |
Angle of inferior minimum rim-disc ratio (degree) | 284.1±14.9 | Mean cup depth (mm) | 0.20±0.09 |
Disc aspect ratio | 1.14±0.18 | Maximum cup depth (mm) | 0.52±0.19 |
Cup aspect ratio | 1.28±0.24 | Height variation contour (mm) | 0.58±0.26 |
Superior rim width (mm) | 0.21±0.10 | Maximum depth value of the depth map (mm) | 0.85±0.28 |
Inferior rim width (mm) | 0.12±0.09 | Minimum depth value of the depth map (mm) | −0.14±0.25 |
Cup area (mm2) | 1.45±0.57 | Rim category | 5.77±0.95 |
Disc area (mm2) | 2.42±0.63 | DDLS stage | 3.77±0.95 |
Rim area (mm2) | 0.97±0.27 | Rim decentering | 0.30±0.42 |
Cup-disc area ratio | 0.58±0.11 | Disc tilt angle (degree) | 10.5±12.5 |
Rim-disc area ratio | 0.42±0.11 | Rim decentering (absolute value) | 0.44±0.27 |
SD: standard deviation