Objective To describe the procedure of pars plana vitrectomy (PPV) using an instrument designed for microincision vitrectomy.
Methods In this retrospective, noncomparative, interventional case series, 6 different surgeons performed 4509 PPV procedures from August 1, 2005, through May 31, 2010, with 1-port vitrectomy using a miniaturized multifunction probe (the Intrector).
Results Complications were reported in 20 eyes (0.44%). Culture-positive endophthalmitis occurred in 2 eyes (0.04%), sterile endophthalmitis occurred in 6 eyes (0.13%), intraoperative or postoperative retinal detachment occurred in 4 eyes (0.09%), and vitreous hemorrhage occurred in 8 eyes (0.18%). None of the 20 eyes with complications of 4509 total eyes had worse visual outcomes than preoperative visual acuity.
Conclusion One-port vitrectomy using the Intrector is a procedure that can be used efficiently for selected cases that do not require membrane peeling.
Figure 1. The design of the Intrector, showing the separate infusion and aspiration lines.
Figure 2. Outer design of the Intrector.
Figure 3. The battery-powered unit. Infusion and aspiration lines are seen as they are connected and enter the Intrector.
Figure 4. Surgical procedure with the Intrector. Surgery is guided by an indirect ophthalmoscope displayed on a video monitor.
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