The invention discloses a medical assistant examination device used before ophthalmic surgery and belongs to the technical field of medical devices. The medical assistant examination device comprisesa diagnosis table, an eye detection device, an integration box, a terminal control device and a power source device, the eye detection device comprises a detection shell, a true depth sensor, an infrared irradiation lamp, an infrared camera and a polarizer, a first image sensor is arranged in the true depth camera which is used for photographing the outsides of eyeballs of a patient and convertinginto electric signals through the first image sensor, and on-off of the infrared irradiation lamp, the infrared camera and the true depth camera is controlled automatically through the integration box; the terminal control device receives fundus photographing condition, eyeball 3D modeling model and personal information of each patient, sets up a file for standby use and store the same, intelligent integration of the whole examination process can be realized, and time and labor are saved while reliability coefficient can be improved greatly. The medical assistant examination device is wide inapplication range, high in applicability and suitable for large-scale popularization.