When a distance prescription is added to any lens, peripheral distortion increases and vision fields decrease. Through the patented 360� Digital Surfacing process, VARILUX Comfort 360� lenses eliminate to provide wider fields of vision and less peripheral distortion. How is this accomplished? When each new VARILUX Comfort 360� lens is created, a unique back-side is designed to the patient�s individual prescription. This design is then applied using patented 360� Digital Surfacing technology to ensure that the interaction between the front-side VARILUX Comfort lens design and the back-side prescription provides a new level of superior vision.