A method for controlling a pair of shutter glasses utilized for viewing stereo images presented by a video output apparatus, the video output apparatus respectively outputting 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 image output period comprising an image driving period and an image stabilization period, the image stabilization period corresponding to a vertical blanking interval, the method characterized by: controlling a first shutter lens of the pair of shutter glasses to be switched between an on-state and an off-state, wherein the first shutter lens stays in the on-state within two image stabilization periods respectively corresponding to two successive specific first images, and is switched from the off-state to the on-state and then switched from the on-state to the off-state for at least once during a first time interval between the two image stabilization periods respectively corresponding to the two successive specific first images; and controlling a second shutter lens of the pair of shutter glasses to be switched between the on-state and the off-state, wherein the second shutter lens stays in the on-state within two image stabilization periods respectively corresponding to two successive specific second images, and is switched from the off-state to the on-state and then switched from the on-state to the off-state for at least once during a second time interval between the two image stabilization periods respectively corresponding to the two successive specific second images; wherein one of the first shutter lens and the second shutter lens is utilized for viewing left-eye images, and the other one of the first shutter lens and the second shutter lens is utilized for viewing right-eye images. controlling a first shutter lens of the pair of shutter glasses to be switched between an on-state and an off-state, wherein the first shutter lens stays in the on-state within two image stabilization periods respectively corresponding to two successive specific first images, and is switched from the off-state to the on-state and then switched from the on-state to the off-state for at least once during a first time interval between the two image stabilization periods respectively corresponding to the two successive specific first images; and controlling a second shutter lens of the pair of shutter glasses to be switched between the on-state and the off-state, wherein the second shutter lens stays in the on-state within two image stabilization periods respectively corresponding to two successive specific second images, and is switched from the off-state to the on-state and then switched from the on-state to the off-state for at least once during a second time interval between the two image stabilization periods respectively corresponding to the two successive specific second images; wherein one of the first shutter lens and the second shutter lens is utilized for viewing left-eye images, and the other one of the first shutter lens and the second shutter lens is utilized for viewing right-eye images.