In recent years, with the increasing rate of myopia in young children, many children are wearing glasses. Myopia has also become a big problem that affects the future of children, but there is no good way to prevent and control it. As a result, many parents are rampaging down the road of finding ways to prevent and control their children’s myopia. Visual training can significantly improve pseudomyopia and control the deepening of myopia in adolescents, and has a better effect on improving visual acuity, enhancing visual skills, developing visual potential and improving visual function. This is true, but some organizations see the potential business opportunities of visual training and exaggerate the effects of visual training. For example, some organizations say: within 300 degrees, the fastest you can completely remove glasses in 30 days; within 500 degrees, you can completely remove glasses using the summer system training; above 600 degrees, more than 90% of children’s vision will be significantly improved, to curb the deterioration of myopia development. But anyone who knows anything about myopia knows that there is no cure for true myopia, because true myopia is a deformation and elongation of the eye axis. At best, the growth of myopia can only be controlled by preventive measures. This bragging is not afraid to flash your tongue. So, what is the role of visual training? 1, to relieve visual fatigue labor with the speed of social development, people’s work pressure is increasing, the time of close work is increasing, especially long-term computer “white-collar family”, many people have good vision but long-term headaches, eye swelling and blurred symptoms, and even affect the quality of life and work efficiency. Through the examination we found that the majority of this group is due to the eyes are often in a state of regulatory tension, do not get enough relaxation caused by the symptoms of visual fatigue, through some simple regulatory training can bring help to patients. At present, the training for insufficient adjustment or decreased flexibility of adjustment generally includes: sorting, reading, flipping mirror reading training, alphabet exercises, etc. 2, the role of visual training in the treatment of strabismus Healthy binocular vision requires normal simultaneous perception, fusion function, and eventually the establishment of fine dynamic stereo vision. Visual training can effectively solve these problems to establish a good binocular visual environment, and has excellent effect on the treatment of intermittent strabismus, the reconstruction of binocular visual function after strabismus surgery, and the establishment and consolidation of binocular visual function in patients with monocular amblyopia with refractive and optical aberrations. 3. The therapeutic role of visual training in amblyopia The amblyopic eye has reduced visual function due to disuse, so long-term training will help stimulate the amblyopic eye and promote the recovery of normal visual function. For amblyopia with different gaze properties, different training methods should be selected for amblyopic patients to correct the wrong gaze properties, help patients to disinhibit and restore normal visual acuity and binocular vision function. More notably, patients with amblyopia should be detected and treated early to seize the best treatment time to improve the possibility of restoring normal vision. 4. The role of visual training in myopia prevention and control Adolescents are in the stage of binocular vision development, and are subjected to a greater eye load than adults, so the occurrence and development of myopia in adolescents has its own characteristics. The annual growth range for normal children is 50 to 75 degrees, and beyond this range is considered excessive growth. The rapid growth of myopia will be effectively controlled after the visual function is improved through effective visual training. The occurrence of myopia in each child is closely related to the anatomy and physiology of the eye, eye habits, physical condition, and genetic factors. For example, the causes of myopia are refractive, curvature, axial, and regulatory factors, and different measures should be taken to address these causes. For example, for over-regulation myopia, progressive lenses, ciliary muscle paralyzing agents and negative reduction lenses can be used for prevention and control, while axial myopia is more suitable for prevention and control by RGP and corneal shaping lenses. 5, visual training on the prevention and control of presbyopia Presbyopia, commonly known as presbyopia, should be said to be a normal aging physiological phenomenon of the human eye, the ability to adjust to decline, crystal hardening, the previous theory is inevitable, but with the application of the latest technology, if early training in adjustment, enhance the ciliary muscle adjustment contraction ability can delay and avoid the appearance of presbyopia. Before doing visual training, it is important to have a thorough examination of the eyes and develop a training program for the trainer based on the condition of the eyes to prevent eye damage. Some institutions let the trainer do the so-called visual training without a thorough examination of the trainer’s eyes, which is not conducive to the health of the patient regardless of the situation. Therefore, parents or patients should not rush to the doctor, but must go to the regular hospital.