Is that the 1.67 high index lenses wouldn't be any thicker than a 1.74 lens?
I just ordered some glasses from Specsavers and was told the 1.74 high index lenses wouldn't be any thinner than a 1.67 lens. Is that right? I have some 1.74 from another opticians and they are pretty thin. My eyes are +5.75 & +4.75.
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