The symptoms of blurred vision in one eye and normal vision in the other eye should be examined and treated in a timely manner because there are many causes of this phenomenon, including refractive error, keratitis, conjunctivitis, cataract, retinal detachment, glaucoma, etc. The causative factors should be found as soon as possible and treated according to the cause. When one eye has myopia, hyperopia or astigmatism, there will be abnormal vision in one eye, you can rest first and observe whether the symptoms improve, if not, it is recommended to go to the hospital for optometry to determine the refractive error, you can wear corrective lenses to improve, or through refractive surgery to correct, common surgical methods include femtosecond laser, keratotomy, etc.; 2, keratitis, conjunctivitis: when the unilateral eye is infected by bacteria, viruses When the unilateral eye is infected with bacteria or viruses, the phenomenon of blurred vision in the unilateral eye will occur. At present, there are no drugs that can inhibit the development of cataract. Ultrasonic emulsion extraction and IOL implantation are more commonly used to treat cataract, and the surgical effect is more ideal; 4. Retinal detachment: surgical treatment is also carried out according to different types, and there are different plans such as laser and freezing, etc. The specific surgical plan needs to be judged with the support of imaging examination; 5. Glaucoma: after diagnosis, you can Under the guidance of doctors, medication is carried out through pupil reduction and drugs that nourish the optic nerve, such as calcium channel blockers and choline-like drugs, etc. In severe cases, surgery and laser are needed to slow down the development of the disease. In addition, other diseases such as optic nerve avulsion, pituitary tumor, extraocular muscle dysfunction, amblyopia, etc. can also cause blurred vision in one eye and normal vision in the other eye, and prompt medical consultation is recommended to avoid delays. For those with unbalanced vision in both eyes, it is recommended to exclude crystal, vitreous and retinal diseases on the basis of correcting refractive error. If the refractive error is not corrected with a frame lens, a corneal contact lens can be considered to reduce the imaging gap between the two eyes to facilitate the fusion of the two eyes.