The light from the laser light source 10 is projected onto the fundus of the eye to be inspected via the scanning optical system 2 and the objective lens optical system 3, and the reflected light reflected by the fundus is incident on the light-shielding member 41 along the reverse path, where Harmful reflected light from the objective lens surface is blocked. The reflected light from the fundus that has passed through the light-shielding member is received by the light receiving element 43 via the light receiving pinhole 42 arranged near the fundus conjugate position. The objective lens optical system is composed of a first lens group 30 and a second lens group 31, and the fundus conjugate surface 32 is in the space between the first and second lens groups within the normal diopter adjustment range. It is moved so that it does not overlap the lens surface.レーザー光源１０からの光が走査光学系２と対物レンズ光学系３を介して被検眼眼底に投光され、眼底で反射した反射光は、逆の経路を辿って遮光部材４１に入射し、そこで対物レンズ面からの有害反射光が遮光される。遮光部材を通過した眼底からの反射光は眼底共役位置近傍に配置された受光ピンホール４２を介して受光素子４３で受光される。対物レンズ光学系が、第１レンズ群３０と第２レンズ群３１で構成されていて、通常の視度調節範囲内では眼底共役面３２が第１と第２レンズ群間の空間にあって対物レンズ面に重ならないように移動される。
