What type of lens is specifically designed to correct presbyopia?

The type of lens specifically designed to correct presbyopia is the progressive lens. These lenses offer a gradual transition in lens power from the top to the bottom, allowing for clear vision at varying distances without visible lines separating different optical zones. This feature is particularly beneficial for individuals with presbyopia, as it provides a seamless shift from distance vision, through intermediate vision, and down to near vision, making it ideal for tasks such as reading and using a computer.

Progressive lenses are designed to accommodate the natural changes in vision that occur with age, providing a more comfortable and aesthetically pleasing solution compared to traditional bifocal or trifocal lenses. Unlike bifocal lenses that have a distinct line separating two different lens powers, or trifocals which have three zones, progressive lenses enhance overall visual comfort and flexibility for daily activities.