TORRANCE, Calif.—Younger Optics is introducing a flat-top 28 in 1.67 high-index plastic. Positioned by Younger as an upgrade for flat-top wearers with high prescriptions, the lenses are manufactured with high-performance MR-10 resin, allowing them to be ultra-thin. The lenses work especially well in drilled rimless eyewear, according to the manufacturer.

High-index 1.67 flat-top 28 clear lenses are available from Younger Optics in adds from 1.00D to 3.50D.