Purpose: To describe a case series of combined 23-gauge vitrectomy and pars plana Baerveldt tube insertion for intraocular pressure (IOP) control in eyes with glaucoma resistant to maximum tolerated medical therapy and/or having failed previous IOP-lowering procedures.
Methods: Eight consecutive patients (8 eyes) undergoing a combined procedure were identified and included in this study. Outcome measures included preoperative and final best-corrected visual acuity (VA), IOP, number of glaucoma medications, and complications. Changes in IOP and glaucoma medications were compared by a paired t test. A Kaplan-Meier survival curve was constructed to evaluate IOP control as a function of time.
Results: Mean patient age was 70.9 years while the mean follow-up time was 12.1 months. Open angle glaucoma was diagnosed in 5 (68%) eyes. Six (75%) eyes were pseudophakic. All eyes received a 250-mm(2) pars plana Baerveldt tube. Vision remained the same or improved in 6 (75%) eyes. Mean preoperative IOP and number of glaucoma medications were significantly (p<0.05) reduced by the combined procedure. Visual acuity of 5 (63%) eyes improved or remained unchanged. Six (75%) eyes encountered minor complications not requiring a return to the operating room. One (13%) eye underwent drainage of hemorrhagic choroidals on postoperative day 12.
Conclusions: A combined 23-gauge vitrectomy and pars plana Baerveldt tube insertion could be considered a useful procedure in reducing IOP and the number of glaucoma medications in eyes with refractory glaucoma.
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