Summary of the major studies on porous orbital implants
| Complications | Material | Our study | Alwitry et al16 | Shoamamesh et al25 | Blaydon et al18 | Yoon et al26 |
| (N=314) | (N=106) | (N=32) | (N=136) | (N=802) | ||
| Porous polyethylene | Porous polyethylene | Porous polyethylene | Porous polyethylene | Hydroxyapatite | ||
| Implants | Infection | 3 | 0 | |||
| Exposure | 14 | 19 | 2 | 5 | 55 | |
| Conjunctiva | Giant papillary conjunctivitis | 4 | 1 | |||
| Conjunctival cyst/granuloma | 1 | 2 | 2 | 6 | 2 | |
| Fornix contracture | 14 | 3 | ||||
| Wound dehiscence | 4 | 1 | 28 | |||
| Eyelid | Blepharoptosis | 33 | 9 | |||
| Dermatochalasis | 3 | |||||
| Deep upper lid sulcus | 7 | |||||
| Entropion | 11 | |||||
| Others | Pain/discomfort (>6 weeks) | 3 | 1 | |||
| Discharge (>6 weeks) | 20 | 4 | 38 |
N, number of patients.