Figure 1. The method for preparation of a 1 mm-depth penetrating ocular injury at six o’clock of the murine limbus. A modified Standard Angle Blade is shown in the picture (A). A copper sheet was stuck 1 mm posterior to the blade tip. The diagram (B) showed that a 1 mm-depth penetrating ocular injury was made perpendicularly to the limbus using the modified standard Angle Blade.