Retina-Vitreous
2009 , Vol 17 , Num 2
Outcomes of Combined 25 Gauge and 20 Gauge Pars Plana Vitrectomy
1Beyoğlu Göz Egitim ve Araştırma Hastanesi, II.Göz Klinigi, İstanbul, Uzm. Dr.2Beyoğlu Göz Egitim ve Araştırma Hastanesi, II.Göz Klinigi, İstanbul, Doç. Dr.
3Beyoğlu Göz Egitim ve Araştırma Hastanesi, II.Göz Klinigi, İstanbul, Asist. Dr. Purpose: To evaluate the anatomical and functional outcomes of combined 25 gauge and 20 gauge pars plana vitrectomy (PPV) in the treatment of a variety of vitreoretinal diseases.
Materials and Methods: In this retrospective interventional case series combined 25 gauge and 20 gauge PPV was performed in 41 eyes. In the combined technique, two 25 g sutureless sclerotomies and one 20 g (for the active hand) sclerotomy were performed. Eyes with a minimum followup of 6 months were evaluated. Main outcome measures were the number of sutures in 25 gauge sclerotomies, changes in visual acuity, intraocular pressure (IOP), and rates of complications.
Results: Mean follow-up was 9.34±2.27 months. No suture was necessary for the 25g sclerotomies. Mean visual acuity improved at postoperative month 1 (p=0.002) and at the last visit (p<0.001). A significant decrease in mean IOP was detected after 2 hours (p<0.001) and by day 1 (p=0.001) postoperatively. In one (2.43%) eye transient severe hypotony was observed. In two eyes operated on with a diagnosis of a macular hole, the holes were sealed after a second surgical procedure.
Conclusion: Combined 25 g and 20 g PPV for treatment of a variety of vitreoretinal diseases yielded anatomic and functional recovery without significant complications. This technique combines the advantages of both systems, expands the indications of 25 g sutureless vitrectomy, and obviates the need for a variety of 25 g instruments. Keywords : 20 gauge pars plana vitrectomy, 25 gauge pars plana vitrectomy, sutureless vitrectomy, transconjunctival sutureless vitrectomy