We hypothesized that to reduce the adverse effects of intravitreal bevacizumab on ocular tissue and whole body, intravitreal injection of a low concentration of bevacizumab and conducting vitrectomy shortly after the injection is useful. In the present prospective, double-masked, randomized, controlled study, we aimed to verify the usefulness of intravitreal injection of 0.16 mg/0.05 ml bevacizumab one day before conducting vitrectomy for PDR.
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Reoperation
Timeframe: 1 month