Based on the understanding how a person’s vision and mind is connected, ZEISS conducted original research in collaboration with the University of Tübingen to explore whether or not the blur in spectacle lenses affects the cognitive load. Lens blur may increase the effort required for the brain to process visual information.

One of the main benefits of varifocal lenses is that they provide a more natural and seamless visual experience. With traditional bifocal lenses, there is a visible line dividing the two prescriptions, which can be noticeable and distracting.