Clinical Study

Retrospective Comparison of 27-Gauge and 25-Gauge Microincision Vitrectomy Surgery with Silicone Oil for the Treatment of Primary Rhegmatogenous Retinal Detachment

Table 3

Comparison of intraoperative and postoperative complications between groups.

25G, n (%)27G, n (%) value

Intraoperative complications
Iatrogenic retinal breaks2 (3.4)1 (2.9)1.000
Posterior capsule injuries1 (1.7)4 (11.8)0.060
Intraocular bleeding00
Choroidal detachment00
Postoperative complications
 Endophthalmitis00
 Redetachment3 (5.2)3 (8.8)0.666
 Subconjunctiva SO leakage2 (3.4)3 (8.8)0.355
 Severe hypotony (<6.5 mmHg)
  1 to 7 days postoperative3 (5.2)1 (2.9)1.000
  2 weeks to 1 month1 (1.7)0 (0.0)1.000
  Last visit1 (1.7)0 (0.0)1.000
 Elevated IOP (>25 mmHg)
  1 to 7 days postoperative15 (25.9)4 (11.8)0.120
  2 weeks to 1 month7 (12.1)6 (17.6)0.540#
  Last visit1 (1.7)0 (0.0)1.000

SO: silicone oil; IOP: intraocular pressure. Pearson’s chi-squared test; Fisher’s exact test; #chi-square test (continuity correction).