Table 2 Comparison between the two studied groups according to occurrence of recurrent RD - PVR– BCVA - secondary procedures at 12 week
Recurrent RD 12 week | Group A (n = 21) | Group B (n = 21) | Test | p | ||
|---|---|---|---|---|---|---|
No. | % | No. | % | |||
 • No | 17 | 81.0 | 14 | 66.7 | χ2= 1.109 | 0.292 |
 • Yes | 4 | 19.0 | 7 | 33.3 | ||
Site of RD |  |  | χ2= 1.061 | FEp= 0.545 | ||
 • Inferior | 1 | 25.0 | 4 | 57.1 | ||
 • Total/ Near total | 3 | 75.0 | 3 | 42.9 | ||
Time weeks |  |  | U =  3.00* | 0.042* | ||
 • Min.– Max. | 2.0–12.0 | 1.0–6.0 | ||||
 • Mean ± SD. | 9.50 ± 5.0 | 2.86 ± 2.41 | ||||
PVR | Group A (n = 20) | Group B (n = 20) | χ2 | MCp | ||
No. | % | No. | % | |||
Pre-operative | Â | Â | Â | Â | 7.196 | 0.091 |
 • Grade B | 8 | 40.0 | 11 | 55.0 | ||
 • Grade C posterior focal | 4 | 20.0 | 7 | 35.0 | ||
 • Grade C posterior diffuse | 2 | 10.0 | 2 | 10.0 | ||
 • Grade C posterior subretinal | 1 | 5.0 | 0 | 0.0 | ||
 • Grade C anterior circumferential | 5 | 25.0 | 0 | 0.0 | ||
6 weeks | Â | Â | Â | Â | 4.441 | 0.513 |
 • None | 12 | 60.0 | 12 | 60.0 | ||
 • Grade A | 1 | 5.0 | 0 | 0.0 | ||
 • Grade B | 2 | 10.0 | 5 | 25.0 | ||
 • Grade C posterior focal | 2 | 10.0 | 1 | 5.0 | ||
 • Grade C posterior diffuse | 3 | 15.0 | 1 | 5.0 | ||
 • Grade C anterior circumferential | 0 | 0.0 | 1 | 5.0 | ||
12 weeks | Â | Â | Â | Â | 10.024* | 0.038* |
 • None | 13 | 65.0 | 8 | 40.0 | ||
 • Grade B | 0 | 0.0 | 6 | 30.0 | ||
 • Grade C posterior focal | 4 | 20.0 | 2 | 10.0 | ||
 • Grade C posterior diffuse | 3 | 15.0 | 2 | 10.0 | ||
 • Grade C posterior subretinal | 0 | 0.0 | 1 | 5.0 | ||
 • Grade C anterior circumferential | 0 | 0.0 | 1 | 5.0 | ||
BCVA Snellen | Group A | Group B | χ2 | MCp | ||
| Â | No. | % | No. | % | ||
Pre-operative | (n = 19) | (n = 20) | – | – | ||
 • HM (0.005) | 19 | 100.0 | 20 | 100.0 | ||
6 weeks | (n = 19) | (n = 18) | 8.986 | 0.175 | ||
 • PL (0.001) | 0 | 0.0 | 1 | 5.6 | ||
 • HM (0.005) | 7 | 36.8 | 6 | 33.3 | ||
 • CF 1 (0.016) | 1 | 5.3 | 4 | 22.2 | ||
 • CF 2 (0.033) | 5 | 26.3 | 6 | 33.3 | ||
 • CF 3 (0.05) | 3 | 15.8 | 0 | 0.0 | ||
 • 0.1 | 2 | 10.5 | 0 | 0.0 | ||
 • 0.2 | 0 | 0.0 | 1 | 5.6 | ||
 • 0.3 | 1 | 5.3 | 0 | 0.0 | ||
12 weeks | (n = 19) | (n = 17) | 12.168* | 0.035* | ||
 • PL (0.001) | 0 | 0.0 | 2 | 11.8 | ||
 • HM (0.005) | 9 | 47.4 | 5 | 29.4 | ||
 • CF 1 (0.016) | 2 | 10.5 | 5 | 29.4 | ||
 • CF 2 (0.033) | 0 | 0.0 | 3 | 17.6 | ||
 • CF 3 (0.05) | 4 | 21.1 | 0 | 0.0 | ||
 • 0.1 | 2 | 10.5 | 2 | 11.8 | ||
 • 0.2 | 1 | 5.3 | 0 | 0.0 | ||
 • 0.4 | 1 | 5.3 | 0 | 0.0 | ||
Secondary procedure at 12 wk. | Group A (n = 20) | Group B (n = 19) | Test | p | ||
No. | % | No. | % | |||
 • None | 13 | 65.0 | 15 | 78.9 | 5.212 | MCp= 0.263 |
 • SOR + Gas | 1 | 5.0 | 0 | 0.0 | ||
 • SOR + PVR management + SOI | 2 | 10.0 | 4 | 21.1 | ||
 • SOR + retinectomy + SOI | 1 | 5.0 | 0 | 0.0 | ||
 • SOR due to high IOP | 2 | 10.0 | 0 | 0.0 | ||
 • SOR + PVR management + SOI + phaco | 1 | 5.0 | 0 | 0.0 | ||
Timing of procedure (weeks) | (n = 7) | (n = 4) | U =  3.50* | 0.042* | ||
 • Min.– Max. | 2.0–12.0 | 2.0–8.0 | ||||
 • Mean ± SD. | 9.71 ± 3.73 | 4.0 ± 2.83 | ||||