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Can I get 1.74 high index lenses with a -6/-6.5 prescription or are they exclusive for higher prescriptions? I'm mainly worried about thickness. - Quora
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Thin lens for high power | 1.67 OR 1.74 Best price hi index lens
Are there visual compromises using an index 1.74 lens compared to index 1.67 lens in eyeglasses? - Quora
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