To enable fabrication of a precise stamped product having an extremely low surface roughness. The projection unit includes a changing unit which changes a fixation mark to be projected onto the fundus, and when a vision fixation state detected by the detection unit does not satisfy a predetermined criterion, the fixation mark control unit controls the changing unit to change a fixation mark to be projected onto the fundus. The magnetic head also includes a dielectric layer enclosing the coil and facing the storage disk.