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| Parameters | KDB (n=129) | iStent (n=44) | P |
| Age (y) | 76.8±7.5 | 75.4±7.8 | 0.24 |
| Gender | 0.29 | ||
| Male | 63 (49) | 17 (39) | |
| Female | 66 (51) | 27 (61) | |
| Type of glaucoma | 0.82 | ||
| Primary open angle glaucoma | 75 (58) | 25 (57) | |
| Exfoliation glaucoma | 30 (23) | 9 (20) | |
| Normal tension glaucoma | 24 (19) | 10 (23) | |
| Severity | <0.01 | ||
| Mild | 31 (24) | 17 (39) | |
| Moderate | 23 (18) | 27 (61) | |
| Severe | 75 (58) | 0 |
KDB: Kahook Dual Blade.
n (%)
