Proliferative Diabetic Retinopathy Clinical Trial
Official title:
Different Conbercept Injection Methods in Treatment of Severe Proliferative Diabetic Retinopathy
To evaluate efficacy of different intravitreal Conbercept injection therapy in the treatment of severe proliferative diabetic retinopathy.
To assess the clinical effects of preoperative, intraoperative or preoperative combined with intraoperative intravitreal conbercept (IVC) injection in pars plana vitrectomy (PPV) with silicone oil tamponade for severe proliferative diabetic retinopathy (PDR). Methods. These patients were randomly assigned to three groups: Group 1 received an IVC injection 3 to 5 days before surgery; Group 2 received an IVC injection at the end of surgery; and Group 3 received an IVC injection 3 to 5 days before PPV as well as an IVC injection at the end of PPV. Follow-up examinations were performed for at least six months after surgery. ;
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