What is plane gaze and what effect does it have on vision?

Plane gaze refers to the eyes watching two-dimensional content within a relatively fixed line of sight, such as reading, watching TV and watching mobile phones. , all belong to plane gaze. Long-term close-up plane gaze makes our ciliary muscles unable to adjust the lens for a long time. With the passage of time, the contraction and extension function of ciliary muscle and the adjustment ability of lens will gradually decrease. Eventually, our vision will deteriorate, resulting in a decline in vision. The state attaches great importance to the prevention and control of myopia, and high-level officials have repeatedly stressed the need to care for children's eyes and let them have a bright future. The Ministry of Education suggests that students should do more outdoor sports to improve their eyesight. Related research and analysis also confirmed that outdoor exercise is helpful to vision health. Because when you exercise outdoors, you can watch distant and near things alternately at any time, so that the ciliary muscles of your eyes can adjust their lenses at any time and make them all move. In fact, the fundamental reason for emphasizing outdoor exercise to improve eyesight is that outdoor exercise is equivalent to putting your eyes on a three-dimensional environment.