The PanOptix lens is like three lenses in one, a trifocal lens. One refractive lens is for distance, a diffractive lens for computer and the other one is for near. PanOptix is not dependent on the movement of the lens but has a unique diffractive optic that is new to IOL design. The optical design of the lens distributes light between near, intermediate and distant vision to accommodate vision at a range of distances.
Compared to monofocal lenses that provide only a single area of clarity, usually set for distance vision sharpness, the multifocal PanOptix lens has similar distance vision but also allows reading and intermediate vision clarity to be free of the necessity of reading glasses or multifocal spectacles.
Other bifocal and trifocal lens implants can also be used for different purposes when an individuals needs vary.