Seiko Succeed internal free-form PALs place the patient's entire Rx onto the back surface of the lens, leaving the front surface a perfect sphere, eliminating front surface distortion. The field of view is significantly expanded since the corrective surface is closer to the eye. Aspheric compensation provides total management of off-center astigmatism and power error, giving the patient a multi-focal lens that feels like a single-vision lens.

Seiko Supercede provides the highest level of optimal performance and uses advanced aspheric compensation (ACC) in the intermediate and near visual zones.

Seiko’s 110% back-surface technology eliminates front curve distortion, provides wider field of view and gives patients an exact prescription for distance, intermediate and near vision. The Seiko Succeed and Supercede offer the soft design for those new to glasses or with active lifestyles, and both offer the hard design for the seasoned wearer and more difficult prescriptions.

Seiko Double Aspheric Single Vision is a ‘double aspheric’ lens -- both sides of the lens are manufactured with specially designed curves that provide edge-to-edge vision. They are 50% thinner and lighter than conventional plastic lenses and are clearer than the conventional plastic lenses due to the minimal surface reflections. This design provides natural and comfortable vision with accurate image perception. It has an excellent AR coating on both sides and reduces magnification of the wearer’s eyes