Table 2.
Comparison of baseline risk factors or stage of PVR grade C and change in BCDVA between the corresponding subgroups
| Variable |
Subgroup IA
(n = 12) |
Subgroup IIA
(n = 11) |
P -value * |
|---|---|---|---|
| Risk factor (Score), Mean ± SD | 2.3 ± 0.5 | 2.3 ± 0.5 | 0.825 |
| Change in BCDVA (Snellen line), Mean ± SD | 2.3 ±1.4 | 2.3 ± 1.1 | 0.928 |
| Variable |
Subgroup IB
(n = 12) |
Subgroup IIB
(n = 12) |
P -value * |
| PVR C (Clock hours), Mean ± SD | 3.3 ± 0.9 | 3.6 ± 0.7 | 0.550 |
| Change in BCDVA (Snellen line), Mean ± SD | 1.5 ±0.8 | 1.3 ±0.7 | 0.703 |
Abbreviations: n, number of eyes; SD, standard deviation; Change in BCDVA: change in best-corrected distance visual acuity measured in the number of Snellen lines gained or lost; PVR C, proliferative vitreoretinopathy grade C (*the Mann–Whitney U test was used). Note: Subgroup IA, subgroup in the control group with a high risk of developing PVR; Subgroup IIA, subgroup in the intervention group with a high risk of developing PVR; Subgroup IB, subgroup in the control group with established preoperative PVR grade C; Subgroup IIB, subgroup in the intervention group with established preoperative PVR grade C.