: Thinner and lighter lenses designed specifically for stronger prescriptions to avoid the "coke-bottle" effect.
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: Most online retailers offer a variety of materials tailored to different needs: : Thinner and lighter lenses designed specifically for
: A hard clear coat that helps protect lenses from daily wear. which is critical for lens alignment.
: Offers a sleek, professional look and durability.
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: Many sites provide a printable ruler or a browser-based tool to measure the distance between your pupils, which is critical for lens alignment.