If you have a strong prescription, standard safety or everyday lenses can leave you with heavy, thick edges that strain your nose and limit your frame choices. High Index 1.67 and 1.74 plastic replacement lenses from VS Eyewear solve this by bending light more efficiently, resulting in lenses that are up to 50% thinner and significantly lighter than traditional options. Custom-edged to breathe new life into your favorite frames, these advanced high-index optics deliver sleek aesthetics, all-day wearing comfort, and razor-sharp vision.
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  • High index 1.67 Plastic replacement lenses
    $40.00
    $40.00
    VS Eyewear

    High index 1.67 Plastic replacement lenses

  • High index 1.74 Plastic replacement lenses
    $95.00
    $95.00
    VS Eyewear

    High index 1.74 Plastic replacement lenses

More Information

Ultra-Thin Aesthetics for High Prescriptions

High-index optical materials feature a higher refractive index, meaning the lens requires less physical material to correct strong farsightedness or nearsightedness. Lenses made with 1.67 index material are up to 33% thinner than standard 1.50 lenses, while 1.74 index lenses represent the thinnest, most technologically advanced plastic lens available—reducing lens edge thickness by up to 50%. Say goodbye to the heavy "coke-bottle" look and enjoy sleek, flat-profile lenses in your favorite frames.

Superior Comfort and Reduced Distortion

Thick, heavy lenses tend to slide down your nose and cause uncomfortable pressure points on your ears and bridge. By dramatically cutting down overall lens weight, High Index 1.67 and 1.74 replacement lenses make high-power prescriptions feel almost weightless. Furthermore, their flattened aspheric design reduces peripheral visual distortion and minimizes the eye-magnification or eye-minification effect, leaving your eyes looking natural behind the lenses.

Built-In UV Protection & Replacement Convenience

Both 1.67 and 1.74 high-index materials inherently block 100% of harmful UVA and UVB radiation without requiring additional coatings. Instead of buying a completely new pair of expensive glasses, our custom lens replacement service allows you to keep your trusted frames while upgrading to high-performance optics. Each lens is precision-surfaced, edged, and fitted to your exact prescription requirements for optimal visual acuity.

Frequently Asked Questions

High Index plastic lenses are advanced optical lenses designed to bend light more efficiently than standard plastic or polycarbonate. Replacement lenses allow you to keep your existing frame while installing new, ultra-thin high-index prescription lenses.

1.67 High Index: Ideal for moderate-to-strong prescriptions (typically +/- 4.00 to +/- 6.00 SPH). It is roughly 33% thinner than standard 1.50 lenses.

1.74 High Index: The ultra-thin standard for high prescriptions (+/- 6.00 SPH and above). It is up to 50% thinner and lighter than standard plastic.

Because high-index materials bend light more sharply, they tend to reflect more surface glare than standard lenses. Applying a premium Anti-Reflective (AR) coating is highly recommended to maximize light transmission and ensure crystal-clear vision.

No. Even though the material is slightly denser than standard plastic, the drastic reduction in total lens volume makes the finished pair significantly lighter overall.

Yes. Both 1.67 and 1.74 high-index materials inherently block 100% of UVA and UVB rays, providing built-in solar protection for your eyes.

Yes. VS Eyewear offers 1.67 and 1.74 high-index materials in single vision, lined bifocal, and progressive replacement options.

High-index lenses are manufactured with an aspheric (flatter) curve. This flat profile prevents strong farsighted lenses from magnifying your eyes and keeps strong nearsighted lenses from making your eyes look unnaturally small.

Most standard prescription and safety frames accept high-index lenses. However, for extreme high-impact industrial safety applications requiring specific ANSI Z87.1 thickness minimums, polycarbonate or Trivex may be recommended based on your job requirements.

You provide your current eyeglass prescription (including SPH, CYL, Axis, and Pupillary Distance) and ship your existing frame to VS Eyewear. Our optical lab will custom-craft, edge, and mount your new 1.67 or 1.74 high-index lenses into your frame.

Rinse the lenses under warm water to remove dust, clean with a mild lens cleaning spray designed for AR-coated lenses, and dry with a clean microfiber cloth. Avoid using paper towels or household glass cleaners.