23-gauge Pars Plana Vitrectomy With Silicone Oil Injectionsilicone Oil Injection With Surgical

50 Patients were included if they had retinal detachment, moderate degrees of PVR, PVR ≥ Grade C, previous buckle surgery and pseudophakia. A good and correct assessment of the detached retina was done. Investigator followed the Lincoff rules to find the retinal breaks. Investigator performed a three-port vitrectomy: one infusion trocar and two instruments trocars. Non-contact wide-angle viewing systems (Resight- Biom) have a viewing field of 60-130° was used. Investigator used Perfluorocarbon liquid (PFCL) for attaching the retina with its gravity. Then performing PFCL against air exchange.The retina will be attached under air tamponade. Laser photocoagulation was performed in the air-filled eye.

Investigator applied the laser effects confluently surrounding all retinal breaks. Then silicone oil (1000 centistokes) was injected as a final step and permanent tamponade.After 3-6 months investigator removed the silicone and examined the retina for 6 weeks after surgery to detect the recurrent cases.

Inclusion criteria

• they had retinal detachment,
• moderate degrees of PVR
• PVR ≥ Grade C
• previous buckle surgery
• pseudophakia.

Exclusion criteria

• the retinal tear was greater than 90 degrees
• presence of intravitreal foreign body
• previous vitrectomy done before
• if follow-up data were unavailable for a minimum follow-up of 6 months following the final retinal procedure.