The cost of cataract surgery is the same regardless of age, as the surgical procedure is the same. The most common method currently used for cataract surgery is cataract ultrasound emulsification combined with IOL implantation, which costs about $6,000 to $8,000. The first part is the cost of hospitalization, which is usually about RMB 3,000-4,000. The second part is the cost of the IOL. The cost of this part is uncertain because IOLs can also be divided into many kinds, with prices ranging from a few hundred dollars to several thousand dollars, or even tens of thousands of dollars, which need to be chosen according to the condition of the patient’s eye, age, and economic conditions. If the patient is 80 years old, since the requirement of visual quality is not very high, it is fine to choose ordinary IOLs, which usually cost less than 3,000 yuan. Therefore, the overall cost of cataract is about 6000 RMB.