High index lenses are glasses lenses that are thinner and lighter than standard options. They may benefit people with stronger prescriptions who might otherwise have heavier, thicker lenses. Share ...

High-index lenses ($150 for single vision, $350 for progressives) are thinner and lighter than CR-39 or polycarbonate lenses, and they will work for even the strongest prescriptions.

High index lenses are available in either glass or plastic. Regardless of the index of refraction, plastic high index lenses tend to be lighter in weight than glass .

And note that polycarbonate lenses, which are natural UV blockers, offer 100 percent protection, as do many high-index lenses, Vitale says. What to know: The AAO recommends getting 100 percent ...

Thinner, lighter high-index lenses are especially recommended if you have a strong eyeglass prescription for nearsightedness, farsightedness or astigmatism. High-Index Lenses 1- Thinner. Because ...

While high-index aspheric lenses have a better profile for strong prescriptions, high-index lenses aren’t impact-resistant. They’re more fragile, so you’ll need to be extra careful with them ...

The company uses polycarbonate lenses, but these can be upgraded to 1.67 high-index lenses for an additional fee. Once you choose your frame style, color and size, ...

You may be able to get along fine with a basic plastic lens at level CR-39, or you may need polycarbonate or high index lenses, which are thinner but pricier. These are usually better for strong ...