Blurred vision may be caused by overuse of eyes, refractive error, etc. It may also be caused by macular degeneration, cataract, retinal artery blockage at the bottom of the eye and other eye diseases, and different treatment measures are taken, such as proper rest, optometry, medication and surgery. 1. Appropriate rest: If you read books, play with cell phones or other electronic products for a long time, resulting in excessive use of the eyes, blurred vision will occur, you can do eye exercises, and can be restored after appropriate rest. 2. Optometry: If refractive error leads to blurred vision, it is recommended to go to the ophthalmology department of regular hospitals for pupil dilation and optometry, and correct vision by wearing glasses. 3. Medication: Macular degeneration and retinal artery blockage in the fundus of the eye cause blurred vision and need medication. (1) Macular degeneration: A few macular degenerations do not require treatment. Most macular degeneration can be treated by injecting anti-vegf drugs into the eye, such as razumab and compazine, in order to recover. (2) Retinal artery blockage: If the retinal artery in the fundus is blocked, it can cause sudden vision loss in one eye, resulting in blurred vision, and requires cooperation with the doctor to urgently take thrombolytic therapy. 4. Surgery: When the elderly have cataracts, the vision will be reduced and at the same time, the lens will be cloudy, resulting in blurred vision, cataract removal surgery and IOL implantation can be taken to improve the vision. Blurred vision is usually caused by a variety of reasons, excluding visual fatigue, it is recommended to go to the ophthalmology department of a regular hospital as soon as possible for consultation and examination, and follow the doctor’s instructions for treatment after a clear diagnosis.