High Index 1.74 Aspheric Single Vision

Product Introduction

The Apex of Thinness: Engineering 1.74 Aspheric Optical Excellence

For high-diopter prescriptions, the primary challenge has always been the physical mass of the lens. Our High Index 1.74 Aspheric Single Vision lens represents the physical limit of resin lens technology, offering a profile that is up to 50% thinner than standard 1.50 index lenses. This extreme reduction in thickness is made possible by high-density sulfur-containing polymers that bend light with incredible efficiency. However, thinness is only half of the equation. Standard spherical lenses at high powers suffer from peripheral aberrations and the "magnification/minification" effect—commonly known as making the wearer's eyes look unnaturally small or large. Our advanced Aspheric surface geometry solves this by flattening the curvature toward the edges. This asphericity results in a lens that is not only flatter and lighter but also provides a much wider, distortion-free field of view. The wearer experiences a more natural facial appearance and superior visual fidelity. Every 1.74 blank undergoes a specialized thermal curing process to ensure the material remains stable and clear, avoiding the "milky" haze often found in lower-quality high-index products. Finished with a multi-layered Super-Hydrophobic Anti-Reflective (SHMC) coating, these lenses are the ultimate choice for fashion-conscious patients with high myopia or hyperopia who refuse to compromise on aesthetics or clarity.