The High-Index Lenses are worthy for people with refractive orders such as Nearsightedness, Farsightedness & Astigmatism. A high-index has a higher "index" of refraction, which means it possess ability to bend light rays to provide clear vision for people with stronger prescription glasses.
Learn the differences between 1.61 and 1.67 High-Index Lenses to know which one works best for you.
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