To make images of an image display apparatus that is mounted on the head easily viewable, an image display apparatus 1 includes a main body 10 that is formed in the shape of eyeglasses. The main body 10 can be fixed onto the head of a user. The main body 10 is provided with a display device 20 that is positioned in front of a user's left eye and a shielding plate 30 that is positioned in front of the user's right eye when the main body 10 is fixed to the user's head. The display device 20 causes an image from an in-built liquid crystal display to be formed in the user's left eye to show the image to the left eye. A position in the horizontal direction and an angle in the vertical direction of the display device 20 are adjustable.