PROBLEM TO BE SOLVED: To provide a new technology which allows both an operator and an assistant to binocularly observe an image of an observation site.SOLUTION: An ophthalmologic microscope comprises an illumination system, a pair of main light-receiving systems, a pair of main eyepiece systems, a control unit, a light separation element, and a pair of sub-light receiving systems. The illumination system irradiates a subject eye with illumination light. The pair of main light-receiving systems is arranged in such a manner that each other's objective optical axes are in nonparallel to allow return light of the illumination light irradiated on the subject eye to be guided to first image pickup elements through respective first objective lenses. The pair of main eyepiece systems includes first display units. The control unit causes an image based on an output from one of the first image pickup elements to be displayed on one of the first display units and causes an image based on an output from the other of the first image pickup elements to be displayed on the other of the first display units. The light separation element is disposed closer to the subject eye than one of the first objective lenses and separates a portion of return light of the illumination light. The pair of sub-light receiving systems is arranged in such a manner that each other's objective optical axes are in nonparallel to allow the portion of the return light separated by the light separation element to be guided to second image pickup elements or eyepieces through respective second objective lenses.SELECTED DRAWING: Figure 1A【課題】術者と助手が双眼で観察部位の像を観察するための新たな技術を提供する。【解決手段】眼科用顕微鏡は、照明系と、一対の主受光系と、一対の主接眼系と、制御部と、光分離素子と、一対の副受光系とを含む。照明系は被検眼に照明光を照射する。一対の主受光系は、互いの対物光軸が非平行に配置され、被検眼に照射された照明光の戻り光を各第１対物レンズを介して各第１撮像素子に導く。一対の主接眼系は第１表示部を含む。制御部は、一方の第１撮像素子からの出力に基づく画像を一方の第１表示部に表示させ、他方の第１撮像素子からの出力に基づく画像を他方の第１表示部に表示させる。光分離素子は、一方の第１対物レンズよりも被検眼側に配置され、照明光の戻り光の一部を分離する。一対の副受光系は、互いの対物光軸が非平行に配置され、光分離素子により分離された戻り光の一部を各第２対物レンズを介
