Retinal hemorrhage was significantly associated with lower Hb concentration (7.88g/dL ± 1.96, P 0.021), higher incidence of intermediate and poor risk (P=0.002), and lower incidence of CNS infiltration (P=0.021). Retinal infiltration and exudative retinal detachment were significantly associated with higher BM blast percentage (P=0.006 and 0.001, respectively) (Table 3). This evidence concerns the gene GSTM1 and Retinal hemorrhage.