Ultrasound Biomicroscopy in Recently Postoperative 23-Gauge Transconjunctival Vitrectomy Sutureless Self-Sealing Sclerotomy

Abstract

Twenty-three-gauge single- and two-step sclerotomies showed no statistical difference in site diameter at UBM. Postoperative UBM examination allowed the evaluation of the wound architecture. A large sample size comparing both surgical techniques should provide a statistical difference.

Study of Intraocular Pressure After 23-Gauge and 25-Gauge Pars Plana Vitrectomy Randomized to Fluid Versus Air Fill

“…Our combined rate of sclerotomy suturing in our series was 2.5% (7 of 276 sclerotomies), which is comparable with those of 0% to 15% cited in the literature. 43,48,51,[56][57][58] Although newer trocar entry blades have a slimmer profile, longer cutting edge, and tapering of both the top and the bottom aspects of the blade, there was no objective difference in our series when using the earlier-generation single bevel blade versus the newer blades concerning hypotony or the suture placement rate. However, subjectively after trocar removal, the sclerotomy sites using the newer blades appeared to externally oppose better in a flat linear fashion compared with the wounds seen using the earliergeneration single bevel blades, which leave a chevronshaped wound after trocar removal.…”

Comparative study of 23-gauge vitrectomy versus 20-gauge vitrectomy for the treatment of rhegmatogenous retinal detachment

“…In contrast to what has been described in the literature [16,19,23], we did not observe frequent hypotony or postoperative choroidal detachment in the 23-G group, fluid leak, or gas sealing at the end of the surgery or during the first postoperative days. We defined hypotony as when IOP was 5 mmHg or less (clinically significant hypotony) [23], somewhat different from other reports (< 6 mmHg [19,40], <8 mmHg [17], <9 mmHg [24], and <10 mmHg [16]). We finally reported no cases with IOP 5 mmHg or less and 2.8% of the cases with 10 mmHg or less, as recently reported in another prospective study on RD (4%) [24].…”

“…One patient operated on using 23-G TSV had IOP of 8 mmHg on day 1 with no choroidal detachment and returned to normal IOP values (10 mmHg) on day 2. In the 20-G group, eight patients had IOP higher than 21 mmHg (range, 24-40 mmHg) versus six patients in the 23-G group (range, [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40]. In all patients, intraocular hypertension was then controlled by topical and/or systemic hypotensive treatment.…”

Comparative study of 27-gauge vs 25-gauge vitrectomy for epiretinal membrane

“…19, 20 Hypotony is usually transient and, in most cases, resolves with conservative measures. There were 3 cases of hypotony in the 27G group and 4 in the 25G group (Figure 3a).…”