Group B Group G Group  Z P-value
Age/mean ± SD 65.76 ± 9.44 63.26 ± 9.30 66.92 ± 11.75 0.31
Sex F/M 13/13 12/11 2/12  
No. of eyes 26 23 14  
BCVA for distance vision before surgery ± SD 0.12 ± 0.17 0.10 ± 0.16 0.10 ± 0.08 0.21
Duration of retinal detachment ± SD 9.15 ± 4.69 9.34 ± 5.23 9.85 ± 3.65 0.08
No. of breaks ± SD 2.25 ± 0.85 1.95 ± 0.82 1.92 ± 0.73 0.08
Grade of PVR (%)
A 38.46 39.13 35.71  
B 30.76 30.43 35.71  
C1 30.76 30.43 28.57  
Silicone oil removal/month/±SD 7.2 ± 3.1 8.0 ± 2.2 10.3 ± 3.3  
Table 1: Characteristics of the patient population in group B, G and Z.