The present invention provides a system that enablesa three-dimensional visual instruction containing a depth whengiving visual instructions to an HMD worn by a medicalpractitioner. A three-dimensional digital entity magnifyingglass technique-assisting and training/educational distributionsystem for utilizing digital entity magnifying glasses ofidentical standards worn by a medical practitioner and aninstructor to display only images of a pointing device orvarious kinds of instruments among image information of theinstructor's CCD camera and synchronously and compositelydisplaying a three-dimensional visual training image outputfrom an image-processing apparatus that can display an after-imageof the image for an arbitrary time setting into imageinformation of the medical practitioner's CCD camera, therebyproviding equal-scaling display of image information to whichan instruction and a comment are added three-dimensionally aswell as an instrument actually used by the instructors on themedical practitioner's HMD.
