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The Finished Single Vision are aspheric, the SFSV and D-28s are not; they are spherical in design. How do you know what the intermediate power is on a trifocal lens? Typically the intermediate power would be 50% of the prescribed add power. Other
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Yes. All styles of lenses that we have in the 1.55 material are coated. A backside coating is not required to tint these lenses but is recommended for scratch protection on the backside.
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