The hematological parameters (Hb, RBC count, and MCV; Table 2) and lipid profile (total cholesterol, LDL-C, HDL-C, and triglycerides; Table 3) of each group of SCD patients (SS, ST, and SA) were compared to each other and to the controls (AA). This evidence concerns the gene GSTM1 and Schnyder corneal dystrophy.