A bifocal freeform lens that aesthetically conceals the line separating its upper and lower
vision segments, while ensuring the smoothest transition between near and far vision zones.
Shamir Duo is designed to address the limitations of traditional bifocal lenses – namely their negative aesthetic association with elderly people,
and the jarring temporary loss of sight experienced when shifting one’s eyes between their near and far vision zones.
Duo overcomes the challenges of traditional bifocal lenses by effectively eliminating the highly visible upper and lower lens segment separation line, while continuing to ensure a smooth transition between near and far vision zones, without the “image jump” when switching the vision from far to near and vice versa.
Clear focus and smooth transition between near and far vision zones
Full compatibility with tinted, photochromic, and polarized sunglass applications, as well as with a range of advanced coatings
Broad fields of clear vision, for close and far visual zones
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