China Cr39 Lenses Company – 1.67 High-Index Lenses: Thinner, Lighter Lenses For Any Eyeglass Prescription – YOLI

1.67 High-Index Lenses: Thinner, Lighter Lenses For Any Eyeglass Prescription

We recommend the R.I. 1.67 for users who are uncomfortable with thick or heavy high-powered lenses.
The 1.67 with its good tintability is ideal for sunglasses and fashion-oriented glasses.

High-index lenses mean that the lens itself can be both thinner and lighter. This allows your glasses to be as fashionable and comfortable as possible. High-index lenses are particularly beneficial if you have a strong eyeglass prescription for nearsightedness, farsightedness, or astigmatism. However, even those with a low eyeglass prescription can benefit from high index lenses.

Most of the people who wear glasses are nearsighted, which means that the corrective lenses that they wear are thin in the center but thicker at the edge of the lens. The stronger their prescription is, the thicker the edges of their lenses are. This would be fine, except for the fact that rimless frames and many other popular frames can’t accommodate lenses wide enough to accommodate the needs of those who have higher prescriptions, or if they can, the lens edges are visible and can detract from the look of the glasses overall.

High-index lenses solve this problem. Because they have a greater ability to bend light rays, they don’t need to be as thick around the edges to be effective. This makes them the perfect option for people who want a particular style of frames but need to make sure they can still actually see!

Advantages of High-Index Lenses

Thinner. Because of their ability to bend light more efficiently, high-index lenses for nearsightedness have thinner edges than lenses with the same prescription power that are made of conventional plastic material.

Lighter. Thinner edges require less lens material, which reduces the overall weight of the lenses.

Lenses made of high-index plastic are lighter than the same lenses made in conventional plastic, so they’re more comfortable to wear.

Signs You Might Need High Index Lenses

1. Your prescription is fairly strong
2. You are tired of wearing heavy glasses that won’t stay put
3. You are frustrated by a “bug-eye” effect
4. You want more choices in glasses frames
5. You are dealing with unexplained strain