Progressive lenses are multifocal eyeglass lenses designed to provide a seamless transition between different vision zones, correcting near, intermediate, and distance vision without the visible lines found in traditional bifocals or trifocals. These lenses offer a smooth gradient of increasing lens power, allowing for a more natural visual experience as you shift your focus from one distance to another. Ideal for individuals with presbyopia, progressive lenses provide the convenience of multiple prescriptions in one pair of glasses, enhancing both functionality and aesthetics.