Effect of PEDF+DHA treatment on wound healing in diabetic corneas. Effect of PEDF+DHA treatment on wound healing in diabetic corneas. The right eyes of 16 mice with hyperglycemia for 10 weeks were injured and divided randomly into two groups and treated for 1 or 2 days with PEDF+DHA or vehicle. A: The wounded corneas were stained with 0.5% methylene blue and photographed with a surgical microscopy through an attached digital camera. B: Wounded area. Data are expressed as mean ± SD (*P < 0.05; n = 4 mice/group). Jiucheng He et al. Diabetes 2017;66:2511-2520 ©2017 by American Diabetes Association