Thirty one diabetic patients were prospectively randomized for treatment with or without tranexamic acid during vitrectomy for proliferative diabetic retinopathy. No significant difference in the occurrence of postoperative haemorrhage in the treated and untreated group was observed (37%/28% during the 1st postoperative week, and 25%/40% during the 2nd-4th postoperative weeks, respectively). The final visual result was similar in both groups.
