Change in global disc parameters
| Preop | 3 months | 1 year | 2 years | p at 2 years | |
| IOP (mm Hg) | 22.33 (3.73) | 15.2 (4.96) | 14.38 (3.89) | 13.80 (3.54) | <0.001* |
| Rim area (mm2) | 0.901 (0.349) | 0.927 (0.350) | 0.928 (0.361) | 0.954 (0.382) | 0.025 |
| Rim volume (mm3) | 0.179 (0.109) | 0.189 (0.115) | 0.194 (0.125) | 0.221 (0.137) | <0.001* |
| Maximum cup depth mm | 0.689 (0.215) | 0.673 (0.196) | 0.661 (0.202) | 0.668 (0.207) | 0.150 |
Figures are means (SD). Asterisk represents difference significance to predefined level p<0.001 (Wilcoxon ranks test).