Blurred vision loss can be caused by eyestrain or eye diseases. Due to the frequent use of computers and other electronic products, especially poor lighting and poor sitting posture, it is easy to cause visual fatigue, resulting in vision loss and blurring. So pay more attention to eye rest and reduce the time of using electronic products appropriately. It may also be caused by eye diseases, such as cataract, glaucoma, various refractive errors, etc. Diabetic retinopathy can also cause vision loss and blurring, and may even have the serious complication of retinal detachment. There are many causes of blurred vision, and if the symptoms persist and cannot be relieved by rest, it is recommended to consult a doctor as soon as possible, improve the examination, clarify the cause, and then follow the doctor’s instructions for treatment, so as to avoid delaying the condition.