Progressive multifocal lens is a look at the top for far and see near in the bottom, the lens of different degrees up and down. Such lenses are mainly used for short-sighted students. Because of the students, for myopia control lens of progressive multifocal lens can be convex below to read and write low-level to reduce the distance regulation, in order to alleviate or prevent the occurrence and development of myopia. And the middle and the top of the progressive lens myopia can provide a clear vision for the medium to long-range.