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Incidence of postoperative hypotony in 25-gauge vitrectomy: oblique versus straight sclerotomies

2012; Elsevier BV; Volume: 47; Issue: 1 Linguagem: Inglês

10.1016/j.jcjo.2011.12.010

1715-3360

Serge Bourgault, Éric Tourville,

Glaucoma and retinal disorders

Abstract Objective To compare the incidence of hypotony after oblique and straight sclerotomies in 25-gauge transconjunctival sutureless vitrectomy (TSV). Design Retrospective, comparative, interventional case series. Participants Two hundred seventy-five eyes of 250 patients. Methods We reviewed 275 consecutive cases of 25-gauge TSV. Oblique incisions were performed on 141 eyes and straight incisions on 134 eyes. Results On postoperative day 1, there was no significant difference in the incidence of hypotony (9.9% vs. 9.2%; p = 0.85) between oblique and straight incisions. The type of incision showed no statistical effect on hypotony in eyes filled with fluid ( p = 0.91) or air-gas ( p = 0.81). Hypotony was significantly reduced using air-gas endotamponade (4.8%) as compared to fluid-filled eyes (20.0%; p = 0.0001). Conclusion Oblique incisions do not reduce the incidence of postoperative hypotony in fluid-filled eyes or with air-gas tamponade. Air-gas tamponade use results in a 4-fold reduction in the incidence of hypotony.