6 Best medium index of refraction eyeglass lenses

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Balanced lenses offering a good compromise between thickness and cost for moderate prescriptions. Medium index lenses provide a middle ground between low and high-index options, suitable for moderate prescriptions. These lenses offer a good balance of thinness, weight, and affordability. They are typically made from materials with an index of refraction around 1.5 to 1.57, providing noticeable improvements in lens thickness compared to low-index options, without the higher cost of high-index lenses. This makes them a popular choice for many eyeglass wearers seeking improved aesthetics and comfort without a significant price increase.
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