Dusty (dustyshakleford) wrote in thequestionclub,

I'm ordering glasses off of Zennioptical. For my prescription they recommend the 1.67 High-Index Single Vision lenses. Would not going with these lenses hamper my vision? Would my prescription in some way be not 'true' if I don't go with the recommended lenses? I'm not very sure what the indexes do. I know they make the lenses thinner if you have a higher script but what advantage does that hold?
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