Materials and Methods: The study group comprised of consecutive patients who underwent transconjunctival high-speed pars plana vitrectomy during the period June 2010-2011, were followed-up for at least 1 week post-operatively and whose records were available. The intra-operative and early post-operative complications, sclerotomy suture and hypotony rate were evaluated retrospectively.

Results: Ninety six patients had vitrectomy surgery for the first time (group 1). Twenty three of them had undergone vitrectomy surgery at least once previously (group 2). In group 1, surgery was performed by 23 gauge (g) in 80, 25 g in 13 and combined 23 and 25 g in 3 cases; in group 2 by 23 g in 21 and 25 g in 2 cases. Intended posterior segment surgery was accomplished in all cases. Microcannula displacement in 5 cases and intraocular lens dislocation into the vitreous in a case in group 1 were complications associated with the vitrectomy system. In group 1, 33 of 96 cases (34%) required sclerotomy sutures at the end of surgery. Sclerotomy suture rate was higher in eyes with silicone or fluid tamponade (p=0.0028, p=0.0364). Post-operative first day hypotony was seen in 6 of 94 cases (6%). In group 1 the rate of hypotony and requirement of sclerotomy sutures were not different between 23 and 25 g surgery. In group 2, microcannula displacement in 3 cases during surgery were intraoperative complications associated with the vitrectomy system. Eighteen of 23 cases (78%) required sclerotomy sutures at the end of surgery. Post-operative first day hypotony was seen in 4 of 23 cases (17%). Sclerotomy suture rate was significantly lower in group 1 (p=0.0003).

Conclusion: Short term high speed transconjunctival vitrectomy outcomes are encouraging. Sclerotomy suture requirement is higher in recurrent PPV surgery and in patients with silicone or fluid tamponade. Keywords : High-speed transconjunctival vitrectomy, 23 g pars plana vitrectomy, 25 g pars plana vitrectomy