For qualitative measurement of astigmatism
2-034t-grooved_fine_mendez_degree_with_4_grooves,3-091t-bores_axis_marker_used_with_mendez_degree,4-058t-bonn_corneal_forceps,2-010s-castroviejo_caliper,2-010t-castroviejo_caliper,18-305-plastic_sterilizing_tray