It is not necessary to replace the lens for cataract. If the cataract is mild and has not yet met the criteria for surgery, or if the patient suffers from serious cardiovascular and cerebrovascular diseases, allergy to anesthesia drugs, etc., and is unable to undergo surgical treatment, the cloudy crystalline lens cannot be replaced, and the patient can follow the doctor’s instructions to treat the problem through medication, such as oral vitamin C, vitamin E, and topical glutathione eye drops, pinoxin eye drops, etc. If the cataract is more serious, or if the patient meets the indications for surgery, it is recommended that the patient undergoes surgery as soon as possible to replace the clouded lens. Each cataract patient’s specific situation is different, and the specific surgical plan will be different. It is recommended that cataract patients go to the hospital as soon as possible to undergo relevant examinations and receive targeted treatment from the doctor. Cataracts, if left untreated and allowed to progress, may affect the patient’s vision.