Progressive Lenses: Seamless Vision from Far to Near

Progressive multifocal lenses are the go-to solution for presbyopia correction. 

Their design features a seamless transition of optical power across a single lens — the upper zone for distance vision, a gradual corridor in the middle with continuously increasing power, and the lower zone for near vision. 

This eliminates the image jump commonly found in traditional bifocals. 

Precise fitting is essential, requiring accurate measurements of pupillary distance and height to align the optical center and progressive corridor. 

In 2025, China has rolled out a series of industry standards for progressive lenses and fitting, strengthening quality assurance in presbyopia products.