The researchers asked volunteers to stare at a small dot on the screen in a dark room for a long time while using infrared cameras to track the eye movements and blinks of the volunteers in real-time. Each time the volunteer blinked, the small dot turned to the right Move one centimeter. Volunteers said afterward that they did not notice this slight change. After about 30 blinks, the volunteers' eyes adjusted to the synchronous movement of the small dots, and they could automatically shift to the new small dots after the blink. The text is intended to show:. ['Blink can stabilize the sight.', 'Eye movements are affected by factors such as noise and will not cause instability of vision.', 'The eyeball turns when blinking, and the eyeball always returns to the position when the eyes reopened.', 'The brain cannot tell the difference between what people see before and after blinking.']