An OCT image of an eye which has been subject to a DSAEK corneal transplant, in which a Descement’s membrane in the cornea has been replaced by a graft, is processed to identify the outline of the graft. If an operation of commencing CD-R printing on the operation panel portion 6 is enabled, the CPU 16 causes the scanner unit 21 to scan a sample CD-R 25 and takes in the image data. In applying the stimulation, the bone conduction device may apply a gain to compensate for the head shadow effect. With this arrangement, the electrode is configured to self expand to a conical configuration with a tip portion configured to be disposed within the pulmonary vein. The remaining XML data may be stored on the computing device until the corresponding objects are requested by the software applications.