Monocular amblyopia refers to low vision in one eye, which is a relatively common disease in ophthalmology, but the harm is much greater than myopia, which may affect the visual function of both eyes, physical and mental health development and daily life. 1. Affecting the visual function of both eyes: monocular amblyopia will make the vision of both eyes different, and the things you see will be in the wrong zone. Because the things seen in three-dimensional space present two-dimensional images, and thus can not correctly identify things near and far, thus affecting the brain’s judgment and its own power of action. 2. Affecting physical and mental health development: prolonged monocular amblyopia is easy to form an inferiority complex. Whether it is in the study or work, long time concentration will make the eye difficult, which will affect the study or work progress plan, in the long run will directly lead to their own efficiency is low, and the gap with their peers. In addition, it is often difficult to see things, will wrestle will bump easy to be ridiculed by others, over time easy to form an inferiority complex, is not conducive to the development of physical and mental health. 3. Impact on daily life: because of monocular visual weakness lack of three-dimensional spatial sense, only through the other normal optic nerve transmission image, can only form a single plan, no three-dimensional fantasy talent, can not be engaged in engineering design, construction engineering, as well as the medical profession and mechanical profession. It is important to note that if the patient’s eyes show symptoms of discomfort, he or she should seek medical attention in a timely manner.