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General results categorized according to lens types
| Lens types | Sample | Retention rate (%) | Final visual acuity BCVA of ≥20/200 (%) | Mean follow-up |
|---|---|---|---|---|
| Boston type I Kpro | 923 | 84 (773/923) | 62,18 (426/685) | 39.37 months |
| Boston type II Kpro | 51 | 51 (26/51) | 39,21 (20/51) | 56.1 months |
| Aurolab Kpro | 71 | 65 (46/71) | 33,80 (24/71) | 36.75 months |
| Osteo-odonto-keratoprosthesis | 145 | 67 (97/145) | - | 114 months |
| Tibial bone keratoprosthesis | 113 | 54 (61/113) | - | 50.4 months |
