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Lenses - Single Vision
The Nulux EP design provides clear vision from edge to edge of the lens. HOYA’s IDSD technology is the first to shape both sides of the lens to the specific rotation of your eyes, so you can focus in all directions, not on your lenses.

HOYA’s Free-Form design approach is based on the understanding that no two eyes are the same. Our patented Integrated Double Surface Design (IDSD) technology maps the specific rotation of each eye, creating the blueprint for lens construction. HOYA Free-Form Fabrication then uses diamond point tools to shape the lens to the exact specifications of your eye rotation.

Conventional single vision lenses use a spherical front surface, meaning the curvature is constant across the front. For low power prescriptions this design produces acceptablevisual quality. But as the magnitude of power increases, distortions appear, particularly at the edges of the lens.

Aspheric lenses are designed to neutralize such distortions, with curvatures on the front of the lens changing from center to edge. But up until now, aspheric designs have been based on theoretical optical design, with little consideration for how the eye actually moves. HOYA’s Nulux EP is the first aspheric design to account for actual physiological functions like eye movement, as well as the first to incorporate the prescription into both sides of the lens.
 
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