Since ancient times, food to nourish life, medicine to cure disease. Three points of treatment, seven points of nourishment. “First to food treatment …… after is the use of medicine er” (Sun Simiao) medicine and food of the same origin, medicine and food family, for the disease, dietary conditioning and drug treatment have the same important status. After being digested and absorbed through the gastrointestinal tract, the nutrients and pharmacological components of the medicine reach all tissues and organs of the body through blood circulation in order to exert their effects. I. Basic treatment principles of cataract Since the length of cataract, the severity of the disease, the cause of the disease and the general condition of cataract patients are different, it is impossible to have a fixed pattern for the treatment of cataract. The following basic treatment principles are proposed for patients’ reference: (1) Early to middle stage of cataract: medication is appropriate to delay the development of lens clouding. (1) Early to mid-stage cataract: medications are recommended to slow down the development of lens clouding, such as local drops to improve lens metabolism and enhance clouding absorption. (2) If the cause of cataract can be clearly identified, active treatment should be directed at the cause. (3) Patients with concurrent cataract should be actively treated for the primary disease. (4) For patients whose vision is less than 0.4 due to cataract, surgical treatment can be considered. (5) Improve the dietary structure and eat more foods rich in protein and vitamin C, etc. (2) Rational use of eating therapy Diet adjustment, though supplementary, is also more important for cataract patients. Because the development of cataract is related to nutritional and metabolic disorders, and reasonable diet regulation can control risk factors such as hypocalcemia, vitamin A deficiency, diabetes and other cataracts caused by nutritional and metabolic disorders, so as to achieve the purpose of cataract prevention and treatment. Reasonable cataract eating treatment method is to combine drug treatment and diet adjustment, improve drug efficacy, reduce drug side effects, reasonably arrange diet and adjust nutritional metabolic balance so as to delay the development of lens clouding. Chinese herbal medicine is mainly applicable to the early and middle stage of cataract. The use of Chinese medicine for cataract treatment should pay attention to the overall concept and dialectical treatment, which means that the medication should be adjusted according to the patient’s eye and systemic conditions. To take Chinese medicine decoction, you need to ask an experienced specialist to write a prescription and take the decoction as required. Cataracts are chronic eye diseases and can usually be treated with proprietary Chinese medicines. However, in the face of numerous drugs, patients must have the ability to identify and, if necessary, consult a specialist in order to select drugs that are effective and reasonably priced. (1) Western medicine for cataract is mainly used in the early and middle stages of cataract to delay the development of lens clouding through treatment. If the cataract has matured or is close to maturity, the current drug treatment cannot make the lens clouding disappear. (2) Combination of eye drops and internal medication. If the etiology is clear, drugs should be selected for the etiology; if the etiology is not clear, local drops should be used to improve lens metabolism and prevent lens clouding formation. (3) Medication should be administered according to the correct method and in a regular manner. Cataract development is slow and the treatment period is long, so the medication should be used regularly according to the correct method in order to achieve certain curative effect. (4) Pay attention to the toxic side effects of drugs. Choose a drug that is suitable for your condition and has precise curative effect with few side effects. Do not easily believe in advertising. (5) Insist on prevention and active control of diabetes and other risk factors.