Official website of Taiyuan Aimu Eye Hospital shows that the automatic zoom reading glasses are real. This kind of reading glasses can automatically adjust the focal length according to the change of the wearer's vision and keep the vision clear. Multi-focus optical system is often used to provide fine focal length adjustment to meet the needs of different visual distances. The design of this kind of glasses makes it unnecessary for the wearer to change the lenses frequently, which increases the comfort and aesthetics.