The manufacturing method and ophthalmic surgical cannula

A suppressed small piercing resistance, provides a cannula and simple production method thereof and exit the prevention projection. The invention relates to a cannula 1 used in piercing the eye in ophthalmic surgery, a cylindrical portion 2 having an insertion hole in the axial direction, a pointed end of the piercing the eye of the cylindrical portion apical has a part 3, a flange 4 provided near the end opposite to the pointed end of the cylindrical portion, and the projection 5 formed with silicone tubular portion outer periphery of the vicinity of the tip portion or tip, the it is characterized in.