60 Eyeglass lenses with highest index of refraction

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Higher refractive index allows for thinner, lighter lenses, especially beneficial for strong prescriptions Eyeglass lenses with a higher index of refraction can bend light more efficiently, allowing for thinner and lighter lenses. This is particularly beneficial for strong prescriptions, as it can reduce the thickness and weight of the lenses significantly. High-index lenses also tend to have less edge thickness, making them more aesthetically pleasing and comfortable to wear, especially in fashionable frames.
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