PURPOSE: To introduce a new non-trocar system for 25-gauge transconjunctival pars plana vitrectomy(PPV). DESIGN: Study of a new surgical instrument. METHODS: This new non-trocar syst em for 25-gauge transconjunctivalP...PURPOSE: To introduce a new non-trocar system for 25-gauge transconjunctival pars plana vitrectomy(PPV). DESIGN: Study of a new surgical instrument. METHODS: This new non-trocar syst em for 25-gauge transconjunctivalPPVconsists of a contact lens ring featuring f our projections containing 1.0-mm diameter holes located 3.0 mm from the ring e dge, a wedge-shaped 25-gauge infusion cannula, and two plugs. RESULTS: The rin g is fixed with 7-0 silk sutures at the 3-and 9-o’clock positions on the lim bus. Using the 25-gauge needle, three conjunctival and scleral incisions (n=3) are made at the projection holes located inferotemporally, superonasally, and su perotemporally. No intra-or postoperative complications were encountered in 14 patients treated by this non-trocar 25-gauge transconjunctival PPV. CONCLUSION : Using the system introduced here, 25-gauge transconjunctival PPVcan be perfor medwithout suturing sclerotomies and without intra-or postoperative complicatio ns.展开更多
文摘PURPOSE: To introduce a new non-trocar system for 25-gauge transconjunctival pars plana vitrectomy(PPV). DESIGN: Study of a new surgical instrument. METHODS: This new non-trocar syst em for 25-gauge transconjunctivalPPVconsists of a contact lens ring featuring f our projections containing 1.0-mm diameter holes located 3.0 mm from the ring e dge, a wedge-shaped 25-gauge infusion cannula, and two plugs. RESULTS: The rin g is fixed with 7-0 silk sutures at the 3-and 9-o’clock positions on the lim bus. Using the 25-gauge needle, three conjunctival and scleral incisions (n=3) are made at the projection holes located inferotemporally, superonasally, and su perotemporally. No intra-or postoperative complications were encountered in 14 patients treated by this non-trocar 25-gauge transconjunctival PPV. CONCLUSION : Using the system introduced here, 25-gauge transconjunctival PPVcan be perfor medwithout suturing sclerotomies and without intra-or postoperative complicatio ns.
