Bifocal and progressive lenses are designed for individuals who require vision correction for more than one distance. Bifocal lenses provide two distinct viewing zones, typically for distance and near vision. Progressive lenses offer a smooth transition between multiple vision ranges without visible lines, allowing more natural viewing at different distances. These lenses are especially useful for people experiencing age-related vision changes. With the right guidance and proper fitting, bifocal and progressive lenses help maintain clear, comfortable vision for reading, working, and everyday activities.