Retrospective Comparison of 27-Gauge and 25-Gauge Microincision Vitrectomy Surgery with Silicone Oil for the Treatment of Primary Rhegmatogenous Retinal Detachment
Table 2
Comparison of surgical procedures and results between groups.
25G
27G
value
Combine cataract surgery, n (%)
9 (16.4)
3 (8.8)
0.489†
Surgical time (min)
56.7 ± 35.9
55.7 ± 36.1
0.894
Postoperative IOP (mmHg)
1 day
16.9 ± 8.6
15.2 ± 6.7
0.325
1 week
15.3 ± 6.2
14.0 ± 4.6
0.317
Last visit
14.3 ± 3.2
14.6 ± 2.7
0.600
Postoperative BCVA, LogMAR at last visit
1.0 ± 0.8
1.1 ± 0.8
0.780‡
Visual improvement
−1.0 ± 1.0
−0.6 ± 0.8
0.082‡
Visual improvement (>0.2 logMAR)
39 (67.2%)
18 (52.9%)
0.173†
Follow-up period (days, range)
185.7 ± 140.2
186.4 ± 126.7
0.982
Duration of silicone oil filling#
135.9.2 ± 39.8
132.6 ± 48.6
0.739
BCVA: best correct visual acuity; IOP: intraocular pressure. Independent T test; †Pearson’s chi-squared test; ‡Wilcoxon signed-rank test; #retinal redetachment excluded.