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  • Title: Small-gauge pars plana vitrectomy: a report by the American Academy of Ophthalmology.
    Author: Recchia FM, Scott IU, Brown GC, Brown MM, Ho AC, Ip MS.
    Journal: Ophthalmology; 2010 Sep; 117(9):1851-7. PubMed ID: 20816248.
    Abstract:
    OBJECTIVE: To review available peer-reviewed publications to evaluate the safety profile and visual outcomes associated with small-gauge pars plana vitrectomy. METHODS: Literature searches of the PubMed and the Cochrane Library databases were last conducted on August 5, 2009, with no date restrictions. The searches were limited to articles published in English. These searches retrieved 328 articles, of which 76 were deemed topically relevant and rated according to strength of evidence. RESULTS: On the basis of level II and level III evidence, the overall safety profile of small-gauge pars plana vitrectomy is similar to that established for conventional 20-gauge pars plana vitrectomy and provides comparable visual acuity results. An increased incidence of infectious endophthalmitis after 25-gauge vitrectomy was reported in 2 comparative studies, but this was not found in multiple, larger, more recent studies, perhaps due to modifications in case selection and surgical technique over time. Compared with 20-gauge vitrectomy, small-gauge vitrectomy is associated with significantly lower levels of patient discomfort and ocular inflammation, and the time required for improvement in visual acuity is shorter. CONCLUSIONS: The technological advances of small-gauge vitrectomy seem to afford visual benefit comparable with that seen with traditional 20-gauge surgery, with more rapid healing, less discomfort, and an acceptably low incidence of adverse events comparable with those observed with conventional 20-gauge vitrectomy. As surgical techniques evolve and clinical experience grows, continued close surveillance is necessary for an accurate assessment of complications.
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