Relationship of iris parameters and risk of angle closure (combined groups)
| Iris measures | Unadjusted OR (95% CI)* | p Value | Multivariate adjusted OR (95% CI)* † | p Value |
| IT 750 | 1.3 (1.1, 1.6) | 0.001 | 1.7 (1.1, 2.7) | 0.032 |
| IT 2000 | 1.4 (1.2, 1.7) | <0.001 | 2.2 (1.3, 3.8) | 0.006 |
| ITM | 1.5 (1.2, 1.8) | <0.001 | 2.2 (1.3, 3.6) | 0.003 |
| I-Area | 1.0 (0.9, 1.1) | 0.880 | 1.1 (1.0, 1.3) | 0.083 |
| I-Curv | 0.5 (0.4, 0.6) | <0.001 | 0.4 (0.3, 0.5) | <0.001 |
↵* Per 0.1 unit increase.
↵† Multivariate adjusted for age, sex, pupil size and anterior chamber depth.
IT750, iris thickness measured at 750 μm from the sclera spur; IT2000, iris thickness measured at 2000 μm from the sclera spur; I-Area, iris area; ITM, maximal iris thickness; I-Curv, iris curvature.