Double Side Aspheric Lens

Double Side Aspheric (DAS) lenses are suitable for the recent trend of big frames because they provide a clear view of the eyes, even in the peripheral zone.

DAS lenses are the flagship lenses of ASAHI-LITE, a Japanese company that specializes in high index materials and thoughtful design.

In general, the power error and astigmatism occur as our eyes move from the optical center to the peripheral zone in spherical and aspheric design lenses. This can cause blur and distortion for the wearer.

However, DAS lenses are designed to minimize these issues by keeping the correct Sphere power and Cylinder power with both front and back aspheric surfaces. With DAS lenses, you can experience a clear view like never before.

Another feature of DAS lenses is that both sides have an aspheric surface, which makes the lens thinner and lighter compared to conventional lenses.

Additionally, the less distortion feature of DAS lenses makes your face line look more natural.