Provided is an ophthalmic surgical microscope which maintains the working space between an objective lens and a patients eye, and with which a patients eye can be observed and OCT images can be captured. An ophthalmic surgical microscope according to an embodiment includes an objective lens, an illumination optical system, an observation optical system, an interference optical system, a first lens group, a second lens group and a polarization member. The illumination optical system illuminates the patients eye using illumination light via the objective lens. The observation optical system is used in order to observe, via the objective lens, the patients eye that is illuminated by the illumination optical system. The interference optical system separates light from a light source into measurement light and reference light, and detects the interference light between the reference light and the returned light of the measurement light from the patients eye. On the path of the measurement light towards the patients eye, the first lens group is disposed on the upstream side, and the second lens group is disposed downstream of the first lens group. The polarization member is disposed upstream of the objective lens on the path of the return light of the illumination light, and is disposed between the first lens group and the second lens group.Linvention concerne un microscope chirurgical ophtalmique qui maintient lespace de travail entre une lentille dobjectif et lœil dun patient et avec lequel lœil dun patient peut être observé et des images OCT peuvent être capturées. Un microscope chirurgical ophtalmique selon un mode de réalisation comprend une lentille dobjectif, un système optique déclairage, un système optique dobservation, un système optique dinterférence, un premier groupe de lentilles, un second groupe de lentilles et un élément de polarisation. Le système optique déclairage éclaire lœil du patient à laide dune lumière déclairage par lintermédiaire de la lentille
