High-index lenses vs. polycarbonate
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1.59 polycarbonate lenses
Our polycarbonate lenses are made with a lens index of 1.59. The index of a lens describes the thickness, with higher numbers indicating a thinner lens. polycarbonate lenses are ideal if you’re looking for a sturdy and lightweight lens, and your prescription is around +/- 3 to 6 diopters.
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High index lenses
Extra high-index lenses are better if your prescription is high, and you don’t want your lenses to be overly thick. If your prescription is over six diopters, choosing high index lenses will keep your glasses lightweight and provide maximum comfort.
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Which type of lens is best for you?
If your prescription is high and you are worried about thick lenses making your eyewear bulky and uncomfortable, high index lenses are the solution. If polycarbonate lenses are available for your prescription, they are an excellent choice for a little extra durability and in-built UV protection.