The choice of IOL for cataract surgery is mainly related to the patient’s age, the condition of the eye and the economic condition. 1. Age: If the patient’s age is young, such as young people or middle-aged people, due to the high requirements and adaptability of the eyes and visual quality after surgery, he should try to choose better IOLs, such as bifocal and trifocal IOLs. 2. Eye conditions: When the patient’s eyes have no other symptoms except cataract, he/she can consider choosing a higher grade IOL. If the patient is accompanied by fundus diseases, the recovery of vision after surgery is usually not good, and he/she can choose a general IOL. 3. Economic conditions: The price of IOLs varies and may range from a few thousand dollars to tens of thousands of dollars, the specific choice is also related to the individual’s economic conditions. It is recommended that cataract patients should consult a doctor in time to assess their condition and follow the doctor’s instructions to choose the appropriate treatment.