A method for controlling a video output apparatus and a pair of shutter glasses utilized for viewing stereo images presented by the video output apparatus, which respectively outputs a first image and a second image during a plurality of image output periods, alternately, one of the first image and the second image being a left-eye image, the other one of the first image and the second image being a right-eye image, each of the image output periods comprising an image driving period and an immediately following image stabilization period, the method characterized by: controlling a first shutter lens (102, 104) of the pair of shutter glasses to be switched between an on-state and an off-state, wherein the first shutter lens (102, 104) stays in the on-state within an image stabilization period corresponding to a specific first image, and continuously stays in the on-state until the first shutter lens (102, 104) is switched from the on-state to the off-state within an image driving period (TP1') corresponding to a specific second image immediately following the specific first image; controlling a second shutter lens (102, 104) of the pair of shutter glasses to be switched between the on-state and the off-state, wherein the second shutter lens (102 104) is switched from the off-state to the on-state within the image driving period (TP1') corresponding to the specific second image, and continuously stays in the on-state to thereby remain in the on-state within an image stabilization period (TH1') corresponding to the specific second image; and controlling a backlight module of the video output apparatus to stay in an on-state within the image stabilization period corresponding to the specific first image and the image stabilization period corresponding to the specific second image, and to stay in an off-state within the image driving period corresponding to the specific second image; wherein one of the first shutter lens (102, 104) and the second shutter lens (102, 104) is utilized for viewing left-eye images, and the other one of the first shutter lens (102, 104) and the second shutter lens (102, 104) is utilized for viewing right-eye images; a first shutter-on period is between an end point of the image stabilization period corresponding to the specific first image and a time point at which the first shutter lens (102, 104) is switched from the on-state to the off-state within the image driving period corresponding to the specific second image; a second shutter-on period (P1') is between a time point at which the second shutter lens (102, 104) is switched from the off-state to the on-state within the image driving period corresponding to the specific second image and an end point of the image driving period corresponding to the specific second image; the first shutter-on period is at least partly overlapped with the second shutter-on period, and a length of a time period during which the backlight module stays in the off-state within the image driving period corresponding to the specific second image is equal to a length of the image driving period corresponding to the specific second image. controlling a first shutter lens (102, 104) of the pair of shutter glasses to be switched between an on-state and an off-state, wherein the first shutter lens (102, 104) stays in the on-state within an image stabilization period corresponding to a specific first image, and continuously stays in the on-state until the first shutter lens (102, 104) is switched from the on-state to the off-state within an image driving period (TP1') corresponding to a specific second image immediately following the specific first image; controlling a second shutter lens (102, 104) of the pair of shutter glasses to be switched between the on-state and the off-state, wherein the second shutter lens (102 104) is switched from the off-state to the on-state within the image driving period (TP1') corresponding to the specific second image, and continuously stays in the on-state to thereby remain in the on-state within an image stabilization period (TH1') corresponding to the specific second image; and controlling a backlight module of the video output apparatus to stay in an on-state within the image stabilization period corresponding to the specific first image and the image stabilization period corresponding to the specific second image, and to stay in an off-state within the image driving period corresponding to the specific second image; wherein one of the first shutter lens (102, 104) and the second shutter lens (102, 104) is utilized for viewing left-eye images, and the other one of the first shutter lens (102, 104) and the second shutter lens (102, 104) is utilized for viewing right-eye images; a first shutter-on period is between an end point of the image stabilization period corresponding to the specific first image and a time point at which the first shutter lens (102, 104) is switched from the on-state to the off-state within the image driving period corresponding to the specific second image; a second shutter-on period (P1') is between a time point at which the second shutter lens (102, 104) is switched from the off-state to the on-state within the image driving period corresponding to the specific second image and an end point of the image driving period corresponding to the specific second image; the first shutter-on period is at least partly overlapped with the second shutter-on period, and a length of a time period during which the backlight module stays in the off-state within the image driving period corresponding to the specific second image is equal to a length of the image driving period corresponding to the specific second image.