Why can't we get synthetic sapphire eyeglasses? Abbe number 72.2 (!!!!) and high index of refraction.
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yeah; the Abbe of the higher-index lenses I got was evidently lower, enough that I had significant problems with monitors
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I can't go below 1.67 except in very small lenses, unfortunately, and small lenses are hard to deal with too
End of conversation
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