Provided is a medical observation apparatus including: an imaging unit which acquires captured video data, the captured video data being data of a captured video obtained by capturing an image of an observation target； a supporting unit which supports the imaging unit； a trigger operation detecting unit which detects a trigger operation, the trigger operation being a predetermined operation associated with an operation of the imaging unit； a surgical tool recognizing unit which recognizes a form of a surgical tool included in the captured video based on the captured video data； and an observation visual field correcting unit which corrects an observation visual field based on the form of the surgical tool recognized by the surgical tool recognizing unit when the trigger operation is detected by the trigger operation detecting unit, the observation visual field being a range of a displayed video displayed on a display device based on the captured video data.
