... measure modedioptercorneal curvature modecorneal curvatureCLBC modecontact lens floor curvaturedioptertop distance0, 10, 12, 13.5, 15mmspherical-20.00~+20.00D (VD= ... 12mm, 0.12D or 0.25D)cylinder0.00~+/-10.00D (0.12D or 0.25D)axis1~180°(step 1 ... 25D)cornea diameter2.0~12.0mmaccessoryprinterthermal printerpower saving device3, 5, 10 minitesdisplay5.6'' TFT displaypowerAC 100 ~ 240V,50/60HZ/90W ...