The present invention relates to a method of altering the refractive properties of the eye, the method including applying a substance to a cornea of an eye, the substance configured to facilitate cross linking of the cornea, irradiating the cornea so as to activate cross linkers in the cornea, and altering the cornea so as to change the refractive properties of the eye. The first separator and the second separator are composed of rectangular thin metal plates, with outer peripheral edges of the first separator and the second separator each bending inclined towards a secondary face thereof on an opposite side of a primary face thereof that is superposed against the membraneelectrode assembly, thereby integrally forming a reinforcing rib. The pattern forming region is formed after the fluid has been ejected so that the arbitrary pattern is formed in the fluid corresponding to the pattern-forming region. The second retardation layer shows a refractive index characteristic of nz>nx\u2267ny.