The present technology provides an image display device capable of preventing a user from feeling glare as much as possible. The image display device according to the present technology includes: an irradiation system that irradiates an eyeball of a user with image light with which an image is formed; and a light amount adjustment system that adjusts a total light amount of the image light to be equal to or lower than a first threshold value regardless of a size of the image. Therefore, it is possible to provide the image display device capable of preventing a user from feeling glare as much as possible.