The lifespan of an intraocular lens is 40 years. If a person in his fifties or sixties has it, it can last a lifetime. There are many kinds of intraocular lenses, such as monofocal, multifocal, trifocal, and stepless zoom. Those with good economic conditions and high vision requirements can choose trifocal or stepless zoom. There are not many hospitals in China that can perform both trifocal and stepless care. If you want to go high-end, you can go to Xiamen Ophthalmology Hospital. Three-focus has been out for more than a year, and Wudi came out this year