The deteriorating vision may be caused by myopia, cataract, fundus lesions, etc., which need to be improved by prescription glasses, medication and surgery according to the specific cause. 1. Myopia: Myopia is usually caused by heredity, poor eye habits, etc. It may have symptoms such as blurred farsightedness, visual fatigue, etc., which may also lead to poorer and poorer vision, which can be corrected and treated by wearing glasses, and can also be corrected by corneal refractive surgery and IOL implantation. 2. Cataract: Cataract is usually caused by the clouding of the lens due to a variety of internal and external factors, and may cause blurred vision, vision loss and other symptoms, early use of amiodarone peptide, vitamin B, vitamin E and other drugs, drug allergies are prohibited, affecting the normal vision of the cataract can be taken to ultrasonic cataract suction emulsification, lens implantation, and other surgical treatments. 3. fundus lesions: such as age-related macular degeneration, retinal detachment, etc., can cause vision loss, need to consult a doctor in time, according to the specific conditions of the vitreous cavity injection of drug therapy or surgical treatment. Poor vision may also be caused by other reasons, it is recommended that patients consult a doctor in a timely manner, with the help of a standardized treatment, so as to avoid delaying the condition. The medication should be used in accordance with the doctor’s instructions, and not blindly used on their own.