Myopia in one eye and normal in the other eye is medically known as refractive error, which is characterized by clear vision in one eye and poor vision in the other eye. If the difference in myopia between the two eyes is not large, it may be pseudomyopia, you can consider life intervention to improve; if the difference in degrees or both eyes are large, it may be true myopia, requiring clinical intervention combined with life intervention to correct vision, so as not to cause serious consequences. 1, life intervention 1, change eye habits: daily recommended to adjust the sitting posture, the use of electronic products to maintain the appropriate eye distance, moderate light, avoid close, long time eye use, help reduce eye burden, improve pseudomyopia, promote vision recovery; 2, enhance physical fitness: increase outdoor exercise and sunshine time, balanced nutritional intake, can be appropriate to eat more containing vitamin A, vitamin B, vitamin D The food containing vitamin A, vitamin B, vitamin D, such as carrots, pumpkin and other orange fruits and vegetables, green pepper, spinach and other dark green fruits and vegetables, can help protect the eyes; 3, visual training: daily visual training such as alternating near and far vision, following vision, can help relax the eye ciliary muscle and help improve the vision loss caused by pseudomyopia. Clinical intervention 1, wearing glasses: patients are recommended to go to the hospital for optometry, under the guidance of doctors, can choose to wear frame glasses or contact lenses to correct monocular vision, so as not to cause the consequences of strabismus or amblyopia; 2, masking therapy: the use of black cloth eye patch or the rest of the shield, tightly cover the eye with better vision, forcing the amblyopic eye to gaze, so that it is exercised, gradually slow down or eliminate the better eye on the amblyopic eye The patient’s vision can be corrected by surgery if the patient is intolerant to wearing glasses or if the difference between the prescriptions of the two eyes is large. Common surgeries such as full femtosecond laser, half femtosecond laser, and lens replacement surgery are available. In addition, for minor patients with disuse amblyopia or strabismus, one eye may be normal and the other nearsighted, usually due to congenital factors or diseases, and treatment needs to be early. If the condition is caused by a primary disease, the primary disease should be treated actively; if it is congenital, vision training or surgery should be performed according to the specific condition. However, parents are advised to go to the hospital as soon as the condition is detected, and to carry out systematic treatment under the guidance of the doctor to help improve the vision condition.