Menifocal Z technology has developed its optical partition that is designed for center portion for distance and periphery portion for near. This unique concentric design takes advantage of obtaining both clear and natural vision. When we look straight to focus distance image, Menifocal Z can match its center optical zone for distance with the pupil. Similarly, when looking downward to focus near images, Menifocal Z can match its peripheral optical zone for near with the pupil.

Menifocal Z sets the distance optical zone on center so that it can give same distance visual acuity and same lens thickness as typical oxygen permeable contact lens. There is little difference between Menifocal Z and typical RGP lenses in fitting. Menifocal Z can ensure its maximum bifocal performance without losing the original advantage of oxygen permeable contact lenses.

Menifocal Z has unique advanced optical zones that slightly change the partitioned ratio among distance optical zone, near optical zone and transition zone according to parameters of additional power, which results in giving good vision to every age of wearers who are trouble with presbyopia.