If a patient is nearsighted in one eye and farsighted in the other, it is called refractive error, and the patient can improve his/her vision by wearing glasses and surgical correction. 1. Wearing eyeglasses: Patients with refractive error need to take an eye test first to clarify the specific refractive status of the eyes, and then wear frame eyeglasses to correct the difference, with appropriate concave lenses for nearsighted eyes and appropriate convex lenses for farsighted eyes. However, frame glasses are only suitable for patients with lower difference, if the difference between the two eyes of the patient is large, the patient can choose to wear contact lenses. 2. Surgical correction: If the effect of wearing glasses is not good, patients can have surgery to correct refractive error, such as corneal laser surgery. Patients should also prevent eye fatigue in daily life, combine work and rest, pay attention to eye hygiene and eye posture. It is recommended that patients with refractive error should consult the hospital in time to assess their condition and choose the best treatment plan under the guidance of the doctor.