Fecha de publicación: 12/01/2023 Fuente: WIPO (eseential oils OR extracts) In this recovery degree estimation device, an image acquiring means acquires an image capturing an eyeball of a patient. An eyeball motion extracting means extracts an eyeball motion characteristic, which is a characteristic of eyeball motion, on the basis of the image. A recovery degree estimation means, using a recovery degree estimation model that is machine-learned in advance, estimates a recovery degree of the patient from the eyeball motion characteristic.