Distribution of Medpor type check
| Size, mm | Orbital sphere | SST sphere | MCOI | Total (%) |
| 14 | 4 | – | – | 4 (1.3) |
| 16 | 7 | 0 | 1 | 8 (2.5) |
| 18 | 139 | 8 | 17 | 164 (52.2) |
| 20 | 134 | 3 | 0 | 137 (43.7) |
| 22 | 1 | 0 | – | 1 (0.3) |
| Total | 285 | 11 | 18 | 314 |
SST, smooth surface tunnel; MCOI, multipurpose conical orbital implant.