TABLE 2.
Comparison of the Posterior Segment Biometrics Between Both Eyes of the Healthy Controls and Between Glaucomatous Eyes and Fellow Healthy Eyes
| Healthy Controls (n=65) | Unilateral Glaucoma (n=43) | |||||
|---|---|---|---|---|---|---|
| Variables | Right Eye | Left Eye | P* | Healthy Eye | Glaucoma Eye | P* |
| ONH characteristics | ||||||
| Horizontal tilt (deg.) | 13.75±8.10 | 12.00±9.00 | 0.144 | 15.55±7.25 | 17.07±6.60 | 0.248 |
| Vertical tilt (deg.) | 9.04±8.31 | 8.58±8.63 | 0.675 | 12.09±8.03 | 13.78±9.37 | 0.348 |
| Disc torsion (deg.) | −3.78±8.25 | −2.26±11.92 | 0.370 | −1.12±16.47 | −0.05±17.85 | 0.627 |
| β zone PPA (μm) | 178.93±152.40 | 179.69±150.91 | 0.969 | 151.72±139.81 | 178.37±144.47 | 0.280 |
| γ zone PPA (μm) | 227.66±184.45 | 216.95±197.72 | 0.665 | 241.46±131.79 | 249.55±158.07 | 0.609 |
| Lamina depth (μm) | 473.04±159.93 | 450.20±164.07 | 0.136 | 437.18±159.71 | 483.44±162.77 | 0.019 |
| Lamina thickness (μm) | 356.84±59.63 | 378.15±60.78 | 0.101 | 361.81±70.12 | 364.06±59.27 | 0.825 |
| Anterior scleral canal opening (mm) | 1.97±0.48 | 1.95±0.25 | 0.763 | 1.85±0.17 | 1.88±0.19 | 0.193 |
| Posterior pole characteristics | ||||||
| Disc-DPE distance (mm) | 2.34±1.08 | 2.51±1.13 | 0.262 | 2.12±0.96 | 2.54±1.57 | 0.043 |
| Disc-DPE depth (μm) | 58.11±49.37 | 71.83±150.51 | 0.477 | 67.28±51.35 | 110.26±141.85 | 0.035 |
| Disc-DPE angle (deg.) | 31.63±27.98 | 24.75±32.32 | 0.067 | 30.05±35.74 | 19.70±38.32 | 0.067 |
| PP-CSA (mm2) | 2.51±4.32 | 4.17±8.01 | 0.104 | 4.09±5.46 | 6.99±1.11 | 0.049 |
| PP-HW (mm) | 1.15±1.59 | 1.45±1.80 | 0.230 | 1.71±1.89 | 2.31±2.72 | 0.074 |
| PP-VW (mm) | 1.08±1.35 | 1.48±1.89 | 0.092 | 1.51±1.48 | 1.90±2.19 | 0.251 |
Data are presented as mean±SD unless otherwise indicated.
*Paired t test for continuous variables.
Statistically significant values (P<0.05) are shown in bold.
CSA indicates cross-sectional area; DPE, deepest point of eye; HW, horizontal width; ONH, optic nerve head; PP, posterior pole; PPA, peripapillary atrophy; VW, vertical width.