Fig 7 shows the concentrations of vitreous Slit2 in the PDR with or without vitreous hemorrhage. Concentrations of vitreous Slit2 ranged from 0.68–3.84 ng/mL in patients with vitreous hemorrhage and 0.97–1.24 ng/mL in subjects without vitreous hemorrhage. Vitreous concentrations of Slit2 were significantly higher in the DR with vitreous hemorrhage group than in the control group (P<0.05), However, the concentrations of Slit2 have no difference between DR patient with or without vitreous hemorrhage. This evidence concerns the gene SLIT2 and vitreous hemorrhage.