Task: Answer Verification
Input (English): Question: Is hyphema a risk factor for failure of trabeculectomy in neovascular glaucoma : a retrospective analysis?
Answer: Postoperative hyphema was significantly correlated with the outcome of trabeculectomy for NVG. There was no significant association between preoperative IVB and postoperative hyphema or the results of trabeculectomy.
Output (English): yes