Table 2 Risk of bias of included studies.

From: Non-surgical interventions for proliferative vitreoretinopathy—a systematic review

View full size image

View full size image

  1. Low risk of bias is indicated by O. Some concern regarding bias is indicated by ~. High risk of bias is indicated by X. LMWH Low Molecular Weight Heparin, VEGF vascular endothelial growth factor.