Progressive lenses which are also referred to as multi-focals or PALs, are lenses that correct for Presbyopia, a condition that is caused by the aging of the eye and its inability to focus on close objects.
Progressive lenses allow the wearer to wear their glasses all the time and see everything they need to, regardless of the distance of the object from the observer. This makes them much more convenient than the “cheater readers”.
No two people are exactly the same, their vision needs, lifestyles and prescriptions make it so that one progressive does not work for everyone. With this in mind, Nikon has several lens design options available for those that require a progressive lens. These lenses also require appropriate frame selections and precise measurements that only a trained eye care professional can do accurately.